21152930

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{124429}}^1$

素因数の和:124453

約数の個数: 16

約数和(自身を含む): 40315320

約数和(自身を除く): 19162390

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 124429, 248858, 622145, 1244290, 2115293, 4230586, 10576465, 21152930]

約数ペア:

[(1, 21152930), (2, 10576465), (5, 4230586), (10, 2115293), (17, 1244290), (34, 622145), (85, 248858), (170, 124429)]