21271935

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{619}}^1$

素因数の和:735

約数の個数: 32

約数和(自身を含む): 35712000

約数和(自身を除く): 14440065

約数列:

[1, 3, 5, 15, 29, 79, 87, 145, 237, 395, 435, 619, 1185, 1857, 2291, 3095, 6873, 9285, 11455, 17951, 34365, 48901, 53853, 89755, 146703, 244505, 269265, 733515, 1418129, 4254387, 7090645, 21271935]

約数ペア:

[(1, 21271935), (3, 7090645), (5, 4254387), (15, 1418129), (29, 733515), (79, 269265), (87, 244505), (145, 146703), (237, 89755), (395, 53853), (435, 48901), (619, 34365), (1185, 17951), (1857, 11455), (2291, 9285), (3095, 6873)]