21103670480

素因数分解:

$2^4\times 5^1\times {\mathrm{263795881}}^1$

素因数の和:263795894

約数の個数: 20

約数和(自身を含む): 49066034052

約数和(自身を除く): 27962363572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263795881, 527591762, 1055183524, 1318979405, 2110367048, 2637958810, 4220734096, 5275917620, 10551835240, 21103670480]

約数ペア:

[(1, 21103670480), (2, 10551835240), (4, 5275917620), (5, 4220734096), (8, 2637958810), (10, 2110367048), (16, 1318979405), (20, 1055183524), (40, 527591762), (80, 263795881)]