20123687986

素因数分解:

$2^1\times {\mathrm{991}}^1\times {\mathrm{2477}}^1\times {\mathrm{4099}}^1$

素因数の和:7569

約数の個数: 16

約数和(自身を含む): 30235564800

約数和(自身を除く): 10111876814

約数列:

[1, 2, 991, 1982, 2477, 4099, 4954, 8198, 2454707, 4062109, 4909414, 8124218, 10153223, 20306446, 10061843993, 20123687986]

約数ペア:

[(1, 20123687986), (2, 10061843993), (991, 20306446), (1982, 10153223), (2477, 8124218), (4099, 4909414), (4954, 4062109), (8198, 2454707)]