21103816

素因数分解:

$2^3\times {\mathrm{659}}^1\times {\mathrm{4003}}^1$

素因数の和:4668

約数の個数: 16

約数和(自身を含む): 39639600

約数和(自身を除く): 18535784

約数列:

[1, 2, 4, 8, 659, 1318, 2636, 4003, 5272, 8006, 16012, 32024, 2637977, 5275954, 10551908, 21103816]

約数ペア:

[(1, 21103816), (2, 10551908), (4, 5275954), (8, 2637977), (659, 32024), (1318, 16012), (2636, 8006), (4003, 5272)]