21361210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4441}}^1$

素因数の和:4498

約数の個数: 32

約数和(自身を含む): 42536592

約数和(自身を除く): 21175382

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4441, 4810, 8882, 22205, 44410, 57733, 115466, 164317, 288665, 328634, 577330, 821585, 1643170, 2136121, 4272242, 10680605, 21361210]

約数ペア:

[(1, 21361210), (2, 10680605), (5, 4272242), (10, 2136121), (13, 1643170), (26, 821585), (37, 577330), (65, 328634), (74, 288665), (130, 164317), (185, 115466), (370, 57733), (481, 44410), (962, 22205), (2405, 8882), (4441, 4810)]