21838440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13999}}^1$

素因数の和:14026

約数の個数: 64

約数和(自身を含む): 70560000

約数和(自身を除く): 48721560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 13999, 27998, 41997, 55996, 69995, 83994, 111992, 139990, 167988, 181987, 209985, 279980, 335976, 363974, 419970, 545961, 559960, 727948, 839940, 909935, 1091922, 1455896, 1679880, 1819870, 2183844, 2729805, 3639740, 4367688, 5459610, 7279480, 10919220, 21838440]

約数ペア:

[(1, 21838440), (2, 10919220), (3, 7279480), (4, 5459610), (5, 4367688), (6, 3639740), (8, 2729805), (10, 2183844), (12, 1819870), (13, 1679880), (15, 1455896), (20, 1091922), (24, 909935), (26, 839940), (30, 727948), (39, 559960), (40, 545961), (52, 419970), (60, 363974), (65, 335976), (78, 279980), (104, 209985), (120, 181987), (130, 167988), (156, 139990), (195, 111992), (260, 83994), (312, 69995), (390, 55996), (520, 41997), (780, 27998), (1560, 13999)]