21022740

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{683}}^1$

素因数の和:723

約数の個数: 120

約数和(自身を含む): 69521760

約数和(自身を除く): 48499020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 270, 285, 324, 342, 380, 405, 513, 540, 570, 683, 684, 810, 855, 1026, 1140, 1366, 1539, 1620, 1710, 2049, 2052, 2565, 2732, 3078, 3415, 3420, 4098, 5130, 6147, 6156, 6830, 7695, 8196, 10245, 10260, 12294, 12977, 13660, 15390, 18441, 20490, 24588, 25954, 30735, 30780, 36882, 38931, 40980, 51908, 55323, 61470, 64885, 73764, 77862, 92205, 110646, 116793, 122940, 129770, 155724, 184410, 194655, 221292, 233586, 259540, 276615, 350379, 368820, 389310, 467172, 553230, 583965, 700758, 778620, 1051137, 1106460, 1167930, 1401516, 1751895, 2102274, 2335860, 3503790, 4204548, 5255685, 7007580, 10511370, 21022740]

約数ペア:

[(1, 21022740), (2, 10511370), (3, 7007580), (4, 5255685), (5, 4204548), (6, 3503790), (9, 2335860), (10, 2102274), (12, 1751895), (15, 1401516), (18, 1167930), (19, 1106460), (20, 1051137), (27, 778620), (30, 700758), (36, 583965), (38, 553230), (45, 467172), (54, 389310), (57, 368820), (60, 350379), (76, 276615), (81, 259540), (90, 233586), (95, 221292), (108, 194655), (114, 184410), (135, 155724), (162, 129770), (171, 122940), (180, 116793), (190, 110646), (228, 92205), (270, 77862), (285, 73764), (324, 64885), (342, 61470), (380, 55323), (405, 51908), (513, 40980), (540, 38931), (570, 36882), (683, 30780), (684, 30735), (810, 25954), (855, 24588), (1026, 20490), (1140, 18441), (1366, 15390), (1539, 13660), (1620, 12977), (1710, 12294), (2049, 10260), (2052, 10245), (2565, 8196), (2732, 7695), (3078, 6830), (3415, 6156), (3420, 6147), (4098, 5130)]