20665552

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{12071}}^1$

素因数の和:12186

約数の個数: 20

約数和(自身を含む): 40417056

約数和(自身を除く): 19751504

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 12071, 24142, 48284, 96568, 193136, 1291597, 2583194, 5166388, 10332776, 20665552]

約数ペア:

[(1, 20665552), (2, 10332776), (4, 5166388), (8, 2583194), (16, 1291597), (107, 193136), (214, 96568), (428, 48284), (856, 24142), (1712, 12071)]