21301065

素因数分解:

$3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 38413440

約数和(自身を除く): 17112375

約数列:

[1, 3, 5, 9, 15, 45, 59, 71, 113, 177, 213, 295, 339, 355, 531, 565, 639, 885, 1017, 1065, 1695, 2655, 3195, 4189, 5085, 6667, 8023, 12567, 20001, 20945, 24069, 33335, 37701, 40115, 60003, 62835, 72207, 100005, 120345, 188505, 300015, 361035, 473357, 1420071, 2366785, 4260213, 7100355, 21301065]

約数ペア:

[(1, 21301065), (3, 7100355), (5, 4260213), (9, 2366785), (15, 1420071), (45, 473357), (59, 361035), (71, 300015), (113, 188505), (177, 120345), (213, 100005), (295, 72207), (339, 62835), (355, 60003), (531, 40115), (565, 37701), (639, 33335), (885, 24069), (1017, 20945), (1065, 20001), (1695, 12567), (2655, 8023), (3195, 6667), (4189, 5085)]