21195010

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{68371}}^1$

素因数の和:68409

約数の個数: 16

約数和(自身を含む): 39382272

約数和(自身を除く): 18187262

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 68371, 136742, 341855, 683710, 2119501, 4239002, 10597505, 21195010]

約数ペア:

[(1, 21195010), (2, 10597505), (5, 4239002), (10, 2119501), (31, 683710), (62, 341855), (155, 136742), (310, 68371)]