27991605

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3541}}^1$

素因数の和:3597

約数の個数: 32

約数和(自身を含む): 48964608

約数和(自身を除く): 20973003

約数列:

[1, 3, 5, 15, 17, 31, 51, 85, 93, 155, 255, 465, 527, 1581, 2635, 3541, 7905, 10623, 17705, 53115, 60197, 109771, 180591, 300985, 329313, 548855, 902955, 1646565, 1866107, 5598321, 9330535, 27991605]

約数ペア:

[(1, 27991605), (3, 9330535), (5, 5598321), (15, 1866107), (17, 1646565), (31, 902955), (51, 548855), (85, 329313), (93, 300985), (155, 180591), (255, 109771), (465, 60197), (527, 53115), (1581, 17705), (2635, 10623), (3541, 7905)]