21344580

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{29}}^2\times {\mathrm{47}}^1$

素因数の和:123

約数の個数: 144

約数和(自身を含む): 70237440

約数和(自身を除く): 48892860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 29, 30, 36, 45, 47, 54, 58, 60, 87, 90, 94, 108, 116, 135, 141, 145, 174, 180, 188, 235, 261, 270, 282, 290, 348, 423, 435, 470, 522, 540, 564, 580, 705, 783, 841, 846, 870, 940, 1044, 1269, 1305, 1363, 1410, 1566, 1682, 1692, 1740, 2115, 2523, 2538, 2610, 2726, 2820, 3132, 3364, 3915, 4089, 4205, 4230, 5046, 5076, 5220, 5452, 6345, 6815, 7569, 7830, 8178, 8410, 8460, 10092, 12267, 12615, 12690, 13630, 15138, 15660, 16356, 16820, 20445, 22707, 24534, 25230, 25380, 27260, 30276, 36801, 37845, 39527, 40890, 45414, 49068, 50460, 61335, 73602, 75690, 79054, 81780, 90828, 113535, 118581, 122670, 147204, 151380, 158108, 184005, 197635, 227070, 237162, 245340, 355743, 368010, 395270, 454140, 474324, 592905, 711486, 736020, 790540, 1067229, 1185810, 1422972, 1778715, 2134458, 2371620, 3557430, 4268916, 5336145, 7114860, 10672290, 21344580]

約数ペア:

[(1, 21344580), (2, 10672290), (3, 7114860), (4, 5336145), (5, 4268916), (6, 3557430), (9, 2371620), (10, 2134458), (12, 1778715), (15, 1422972), (18, 1185810), (20, 1067229), (27, 790540), (29, 736020), (30, 711486), (36, 592905), (45, 474324), (47, 454140), (54, 395270), (58, 368010), (60, 355743), (87, 245340), (90, 237162), (94, 227070), (108, 197635), (116, 184005), (135, 158108), (141, 151380), (145, 147204), (174, 122670), (180, 118581), (188, 113535), (235, 90828), (261, 81780), (270, 79054), (282, 75690), (290, 73602), (348, 61335), (423, 50460), (435, 49068), (470, 45414), (522, 40890), (540, 39527), (564, 37845), (580, 36801), (705, 30276), (783, 27260), (841, 25380), (846, 25230), (870, 24534), (940, 22707), (1044, 20445), (1269, 16820), (1305, 16356), (1363, 15660), (1410, 15138), (1566, 13630), (1682, 12690), (1692, 12615), (1740, 12267), (2115, 10092), (2523, 8460), (2538, 8410), (2610, 8178), (2726, 7830), (2820, 7569), (3132, 6815), (3364, 6345), (3915, 5452), (4089, 5220), (4205, 5076), (4230, 5046)]