21160454

素因数分解:

$2^1\times 7^2\times {\mathrm{263}}^1\times {\mathrm{821}}^1$

素因数の和:1100

約数の個数: 24

約数和(自身を含む): 37108368

約数和(自身を除く): 15947914

約数列:

[1, 2, 7, 14, 49, 98, 263, 526, 821, 1642, 1841, 3682, 5747, 11494, 12887, 25774, 40229, 80458, 215923, 431846, 1511461, 3022922, 10580227, 21160454]

約数ペア:

[(1, 21160454), (2, 10580227), (7, 3022922), (14, 1511461), (49, 431846), (98, 215923), (263, 80458), (526, 40229), (821, 25774), (1642, 12887), (1841, 11494), (3682, 5747)]