21295530

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{1567}}^1$

素因数の和:1731

約数の個数: 48

約数和(自身を含む): 55770624

約数和(自身を除く): 34475094

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 151, 302, 453, 755, 906, 1359, 1510, 1567, 2265, 2718, 3134, 4530, 4701, 6795, 7835, 9402, 13590, 14103, 15670, 23505, 28206, 47010, 70515, 141030, 236617, 473234, 709851, 1183085, 1419702, 2129553, 2366170, 3549255, 4259106, 7098510, 10647765, 21295530]

約数ペア:

[(1, 21295530), (2, 10647765), (3, 7098510), (5, 4259106), (6, 3549255), (9, 2366170), (10, 2129553), (15, 1419702), (18, 1183085), (30, 709851), (45, 473234), (90, 236617), (151, 141030), (302, 70515), (453, 47010), (755, 28206), (906, 23505), (1359, 15670), (1510, 14103), (1567, 13590), (2265, 9402), (2718, 7835), (3134, 6795), (4530, 4701)]