20517672

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:335

約数の個数: 96

約数和(自身を含む): 60739200

約数和(自身を除く): 40221528

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 73, 84, 98, 146, 147, 168, 196, 219, 239, 292, 294, 392, 438, 478, 511, 584, 588, 717, 876, 956, 1022, 1176, 1434, 1533, 1673, 1752, 1912, 2044, 2868, 3066, 3346, 3577, 4088, 5019, 5736, 6132, 6692, 7154, 10038, 10731, 11711, 12264, 13384, 14308, 17447, 20076, 21462, 23422, 28616, 34894, 35133, 40152, 42924, 46844, 52341, 69788, 70266, 85848, 93688, 104682, 122129, 139576, 140532, 209364, 244258, 281064, 366387, 418728, 488516, 732774, 854903, 977032, 1465548, 1709806, 2564709, 2931096, 3419612, 5129418, 6839224, 10258836, 20517672]

約数ペア:

[(1, 20517672), (2, 10258836), (3, 6839224), (4, 5129418), (6, 3419612), (7, 2931096), (8, 2564709), (12, 1709806), (14, 1465548), (21, 977032), (24, 854903), (28, 732774), (42, 488516), (49, 418728), (56, 366387), (73, 281064), (84, 244258), (98, 209364), (146, 140532), (147, 139576), (168, 122129), (196, 104682), (219, 93688), (239, 85848), (292, 70266), (294, 69788), (392, 52341), (438, 46844), (478, 42924), (511, 40152), (584, 35133), (588, 34894), (717, 28616), (876, 23422), (956, 21462), (1022, 20076), (1176, 17447), (1434, 14308), (1533, 13384), (1673, 12264), (1752, 11711), (1912, 10731), (2044, 10038), (2868, 7154), (3066, 6692), (3346, 6132), (3577, 5736), (4088, 5019)]