21291566270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2684939}}^1$

素因数の和:2685020

約数の個数: 32

約数和(自身を含む): 41949502560

約数和(自身を除く): 20657936290

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 305, 610, 793, 1586, 3965, 7930, 2684939, 5369878, 13424695, 26849390, 34904207, 69808414, 163781279, 174521035, 327562558, 349042070, 818906395, 1637812790, 2129156627, 4258313254, 10645783135, 21291566270]

約数ペア:

[(1, 21291566270), (2, 10645783135), (5, 4258313254), (10, 2129156627), (13, 1637812790), (26, 818906395), (61, 349042070), (65, 327562558), (122, 174521035), (130, 163781279), (305, 69808414), (610, 34904207), (793, 26849390), (1586, 13424695), (3965, 5369878), (7930, 2684939)]