16980715

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1543}}^1$

素因数の和:1650

約数の個数: 16

約数和(自身を含む): 21344256

約数和(自身を除く): 4363541

約数列:

[1, 5, 31, 71, 155, 355, 1543, 2201, 7715, 11005, 47833, 109553, 239165, 547765, 3396143, 16980715]

約数ペア:

[(1, 16980715), (5, 3396143), (31, 547765), (71, 239165), (155, 109553), (355, 47833), (1543, 11005), (2201, 7715)]