21156670

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{1283}}^1$

素因数の和:1404

約数の個数: 32

約数和(自身を含む): 40769568

約数和(自身を除く): 19612898

約数列:

[1, 2, 5, 10, 17, 34, 85, 97, 170, 194, 485, 970, 1283, 1649, 2566, 3298, 6415, 8245, 12830, 16490, 21811, 43622, 109055, 124451, 218110, 248902, 622255, 1244510, 2115667, 4231334, 10578335, 21156670]

約数ペア:

[(1, 21156670), (2, 10578335), (5, 4231334), (10, 2115667), (17, 1244510), (34, 622255), (85, 248902), (97, 218110), (170, 124451), (194, 109055), (485, 43622), (970, 21811), (1283, 16490), (1649, 12830), (2566, 8245), (3298, 6415)]