21994965

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15767}}^1$

素因数の和:15809

約数の個数: 24

約数和(自身を含む): 39356928

約数和(自身を除く): 17361963

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 15767, 47301, 78835, 141903, 236505, 488777, 709515, 1466331, 2443885, 4398993, 7331655, 21994965]

約数ペア:

[(1, 21994965), (3, 7331655), (5, 4398993), (9, 2443885), (15, 1466331), (31, 709515), (45, 488777), (93, 236505), (155, 141903), (279, 78835), (465, 47301), (1395, 15767)]