21358492065

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3821}}^1\times {\mathrm{4007}}^1$

素因数の和:7870

約数の個数: 48

約数和(自身を含む): 38235165696

約数和(自身を除く): 16876673631

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 3821, 4007, 11463, 12021, 19105, 20035, 34389, 36063, 57315, 60105, 118451, 124217, 171945, 180315, 355353, 372651, 592255, 621085, 1066059, 1117953, 1776765, 1863255, 5330295, 5589765, 15310747, 45932241, 76553735, 137796723, 229661205, 474633157, 688983615, 1423899471, 2373165785, 4271698413, 7119497355, 21358492065]

約数ペア:

[(1, 21358492065), (3, 7119497355), (5, 4271698413), (9, 2373165785), (15, 1423899471), (31, 688983615), (45, 474633157), (93, 229661205), (155, 137796723), (279, 76553735), (465, 45932241), (1395, 15310747), (3821, 5589765), (4007, 5330295), (11463, 1863255), (12021, 1776765), (19105, 1117953), (20035, 1066059), (34389, 621085), (36063, 592255), (57315, 372651), (60105, 355353), (118451, 180315), (124217, 171945)]