21990852

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1$

素因数の和:279

約数の個数: 120

約数和(自身を含む): 64886976

約数和(自身を除く): 42896124

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 23, 26, 27, 36, 39, 46, 52, 54, 69, 78, 81, 92, 108, 117, 138, 156, 162, 207, 227, 234, 276, 299, 324, 351, 414, 454, 468, 598, 621, 681, 702, 828, 897, 908, 1053, 1196, 1242, 1362, 1404, 1794, 1863, 2043, 2106, 2484, 2691, 2724, 2951, 3588, 3726, 4086, 4212, 5221, 5382, 5902, 6129, 7452, 8073, 8172, 8853, 10442, 10764, 11804, 12258, 15663, 16146, 17706, 18387, 20884, 24219, 24516, 26559, 31326, 32292, 35412, 36774, 46989, 48438, 53118, 62652, 67873, 73548, 79677, 93978, 96876, 106236, 135746, 140967, 159354, 187956, 203619, 239031, 271492, 281934, 318708, 407238, 422901, 478062, 563868, 610857, 814476, 845802, 956124, 1221714, 1691604, 1832571, 2443428, 3665142, 5497713, 7330284, 10995426, 21990852]

約数ペア:

[(1, 21990852), (2, 10995426), (3, 7330284), (4, 5497713), (6, 3665142), (9, 2443428), (12, 1832571), (13, 1691604), (18, 1221714), (23, 956124), (26, 845802), (27, 814476), (36, 610857), (39, 563868), (46, 478062), (52, 422901), (54, 407238), (69, 318708), (78, 281934), (81, 271492), (92, 239031), (108, 203619), (117, 187956), (138, 159354), (156, 140967), (162, 135746), (207, 106236), (227, 96876), (234, 93978), (276, 79677), (299, 73548), (324, 67873), (351, 62652), (414, 53118), (454, 48438), (468, 46989), (598, 36774), (621, 35412), (681, 32292), (702, 31326), (828, 26559), (897, 24516), (908, 24219), (1053, 20884), (1196, 18387), (1242, 17706), (1362, 16146), (1404, 15663), (1794, 12258), (1863, 11804), (2043, 10764), (2106, 10442), (2484, 8853), (2691, 8172), (2724, 8073), (2951, 7452), (3588, 6129), (3726, 5902), (4086, 5382), (4212, 5221)]