21142310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9743}}^1$

素因数の和:9788

約数の個数: 32

約数和(自身を含む): 44900352

約数和(自身を除く): 23758042

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 9743, 19486, 48715, 68201, 97430, 136402, 302033, 341005, 604066, 682010, 1510165, 2114231, 3020330, 4228462, 10571155, 21142310]

約数ペア:

[(1, 21142310), (2, 10571155), (5, 4228462), (7, 3020330), (10, 2114231), (14, 1510165), (31, 682010), (35, 604066), (62, 341005), (70, 302033), (155, 136402), (217, 97430), (310, 68201), (434, 48715), (1085, 19486), (2170, 9743)]