31821972

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:238

約数の個数: 144

約数和(自身を含む): 97598592

約数和(自身を除く): 65776620

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 23, 26, 28, 39, 42, 46, 49, 52, 69, 78, 84, 91, 92, 98, 138, 147, 156, 161, 181, 182, 196, 273, 276, 294, 299, 322, 362, 364, 483, 543, 546, 588, 598, 637, 644, 724, 897, 966, 1086, 1092, 1127, 1196, 1267, 1274, 1794, 1911, 1932, 2093, 2172, 2254, 2353, 2534, 2548, 3381, 3588, 3801, 3822, 4163, 4186, 4508, 4706, 5068, 6279, 6762, 7059, 7602, 7644, 8326, 8372, 8869, 9412, 12489, 12558, 13524, 14118, 14651, 15204, 16471, 16652, 17738, 24978, 25116, 26607, 28236, 29141, 29302, 32942, 35476, 43953, 49413, 49956, 53214, 54119, 58282, 58604, 65884, 87423, 87906, 98826, 106428, 108238, 115297, 116564, 162357, 174846, 175812, 197652, 203987, 216476, 230594, 324714, 345891, 349692, 378833, 407974, 461188, 611961, 649428, 691782, 757666, 815948, 1136499, 1223922, 1383564, 1515332, 2272998, 2447844, 2651831, 4545996, 5303662, 7955493, 10607324, 15910986, 31821972]

約数ペア:

[(1, 31821972), (2, 15910986), (3, 10607324), (4, 7955493), (6, 5303662), (7, 4545996), (12, 2651831), (13, 2447844), (14, 2272998), (21, 1515332), (23, 1383564), (26, 1223922), (28, 1136499), (39, 815948), (42, 757666), (46, 691782), (49, 649428), (52, 611961), (69, 461188), (78, 407974), (84, 378833), (91, 349692), (92, 345891), (98, 324714), (138, 230594), (147, 216476), (156, 203987), (161, 197652), (181, 175812), (182, 174846), (196, 162357), (273, 116564), (276, 115297), (294, 108238), (299, 106428), (322, 98826), (362, 87906), (364, 87423), (483, 65884), (543, 58604), (546, 58282), (588, 54119), (598, 53214), (637, 49956), (644, 49413), (724, 43953), (897, 35476), (966, 32942), (1086, 29302), (1092, 29141), (1127, 28236), (1196, 26607), (1267, 25116), (1274, 24978), (1794, 17738), (1911, 16652), (1932, 16471), (2093, 15204), (2172, 14651), (2254, 14118), (2353, 13524), (2534, 12558), (2548, 12489), (3381, 9412), (3588, 8869), (3801, 8372), (3822, 8326), (4163, 7644), (4186, 7602), (4508, 7059), (4706, 6762), (5068, 6279)]