21102068

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{1543}}^1$

素因数の和:1823

約数の個数: 24

約数和(自身を含む): 39946368

約数和(自身を除く): 18844300

約数列:

[1, 2, 4, 13, 26, 52, 263, 526, 1052, 1543, 3086, 3419, 6172, 6838, 13676, 20059, 40118, 80236, 405809, 811618, 1623236, 5275517, 10551034, 21102068]

約数ペア:

[(1, 21102068), (2, 10551034), (4, 5275517), (13, 1623236), (26, 811618), (52, 405809), (263, 80236), (526, 40118), (1052, 20059), (1543, 13676), (3086, 6838), (3419, 6172)]