20522901

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{433}}^1$

素因数の和:541

約数の個数: 32

約数和(自身を含む): 32720128

約数和(自身を除く): 12197227

約数列:

[1, 3, 7, 21, 37, 61, 111, 183, 259, 427, 433, 777, 1281, 1299, 2257, 3031, 6771, 9093, 15799, 16021, 26413, 47397, 48063, 79239, 112147, 184891, 336441, 554673, 977281, 2931843, 6840967, 20522901]

約数ペア:

[(1, 20522901), (3, 6840967), (7, 2931843), (21, 977281), (37, 554673), (61, 336441), (111, 184891), (183, 112147), (259, 79239), (427, 48063), (433, 47397), (777, 26413), (1281, 16021), (1299, 15799), (2257, 9093), (3031, 6771)]