21074110

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{433}}^1$

素因数の和:628

約数の個数: 32

約数和(自身を含む): 39497472

約数和(自身を除く): 18423362

約数列:

[1, 2, 5, 10, 31, 62, 155, 157, 310, 314, 433, 785, 866, 1570, 2165, 4330, 4867, 9734, 13423, 24335, 26846, 48670, 67115, 67981, 134230, 135962, 339905, 679810, 2107411, 4214822, 10537055, 21074110]

約数ペア:

[(1, 21074110), (2, 10537055), (5, 4214822), (10, 2107411), (31, 679810), (62, 339905), (155, 135962), (157, 134230), (310, 67981), (314, 67115), (433, 48670), (785, 26846), (866, 24335), (1570, 13423), (2165, 9734), (4330, 4867)]