21331430

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{701}}^1$

素因数の和:904

約数の個数: 32

約数和(自身を含む): 40940640

約数和(自身を除く): 19609210

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 179, 358, 701, 895, 1402, 1790, 3043, 3505, 6086, 7010, 11917, 15215, 23834, 30430, 59585, 119170, 125479, 250958, 627395, 1254790, 2133143, 4266286, 10665715, 21331430]

約数ペア:

[(1, 21331430), (2, 10665715), (5, 4266286), (10, 2133143), (17, 1254790), (34, 627395), (85, 250958), (170, 125479), (179, 119170), (358, 59585), (701, 30430), (895, 23834), (1402, 15215), (1790, 11917), (3043, 7010), (3505, 6086)]