21125340

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:137

約数の個数: 192

約数和(自身を含む): 72576000

約数和(自身を除く): 51450660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 29, 30, 36, 38, 45, 54, 57, 58, 60, 71, 76, 87, 90, 95, 108, 114, 116, 135, 142, 145, 171, 174, 180, 190, 213, 228, 261, 270, 284, 285, 290, 342, 348, 355, 380, 426, 435, 513, 522, 540, 551, 570, 580, 639, 684, 710, 783, 852, 855, 870, 1026, 1044, 1065, 1102, 1140, 1278, 1305, 1349, 1420, 1566, 1653, 1710, 1740, 1917, 2052, 2059, 2130, 2204, 2556, 2565, 2610, 2698, 2755, 3132, 3195, 3306, 3420, 3834, 3915, 4047, 4118, 4260, 4959, 5130, 5220, 5396, 5510, 6177, 6390, 6612, 6745, 7668, 7830, 8094, 8236, 8265, 9585, 9918, 10260, 10295, 11020, 12141, 12354, 12780, 13490, 14877, 15660, 16188, 16530, 18531, 19170, 19836, 20235, 20590, 24282, 24708, 24795, 26980, 29754, 30885, 33060, 36423, 37062, 38340, 39121, 40470, 41180, 48564, 49590, 55593, 59508, 60705, 61770, 72846, 74124, 74385, 78242, 80940, 92655, 99180, 111186, 117363, 121410, 123540, 145692, 148770, 156484, 182115, 185310, 195605, 222372, 234726, 242820, 277965, 297540, 352089, 364230, 370620, 391210, 469452, 555930, 586815, 704178, 728460, 782420, 1056267, 1111860, 1173630, 1408356, 1760445, 2112534, 2347260, 3520890, 4225068, 5281335, 7041780, 10562670, 21125340]

約数ペア:

[(1, 21125340), (2, 10562670), (3, 7041780), (4, 5281335), (5, 4225068), (6, 3520890), (9, 2347260), (10, 2112534), (12, 1760445), (15, 1408356), (18, 1173630), (19, 1111860), (20, 1056267), (27, 782420), (29, 728460), (30, 704178), (36, 586815), (38, 555930), (45, 469452), (54, 391210), (57, 370620), (58, 364230), (60, 352089), (71, 297540), (76, 277965), (87, 242820), (90, 234726), (95, 222372), (108, 195605), (114, 185310), (116, 182115), (135, 156484), (142, 148770), (145, 145692), (171, 123540), (174, 121410), (180, 117363), (190, 111186), (213, 99180), (228, 92655), (261, 80940), (270, 78242), (284, 74385), (285, 74124), (290, 72846), (342, 61770), (348, 60705), (355, 59508), (380, 55593), (426, 49590), (435, 48564), (513, 41180), (522, 40470), (540, 39121), (551, 38340), (570, 37062), (580, 36423), (639, 33060), (684, 30885), (710, 29754), (783, 26980), (852, 24795), (855, 24708), (870, 24282), (1026, 20590), (1044, 20235), (1065, 19836), (1102, 19170), (1140, 18531), (1278, 16530), (1305, 16188), (1349, 15660), (1420, 14877), (1566, 13490), (1653, 12780), (1710, 12354), (1740, 12141), (1917, 11020), (2052, 10295), (2059, 10260), (2130, 9918), (2204, 9585), (2556, 8265), (2565, 8236), (2610, 8094), (2698, 7830), (2755, 7668), (3132, 6745), (3195, 6612), (3306, 6390), (3420, 6177), (3834, 5510), (3915, 5396), (4047, 5220), (4118, 5130), (4260, 4959)]