21727960

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{18731}}^1$

素因数の和:18771

約数の個数: 32

約数和(自身を含む): 50576400

約数和(自身を除く): 28848440

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 18731, 37462, 74924, 93655, 149848, 187310, 374620, 543199, 749240, 1086398, 2172796, 2715995, 4345592, 5431990, 10863980, 21727960]

約数ペア:

[(1, 21727960), (2, 10863980), (4, 5431990), (5, 4345592), (8, 2715995), (10, 2172796), (20, 1086398), (29, 749240), (40, 543199), (58, 374620), (116, 187310), (145, 149848), (232, 93655), (290, 74924), (580, 37462), (1160, 18731)]