28821815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{3517}}^1$

素因数の和:3682

約数の個数: 16

約数和(自身を含む): 37994400

約数和(自身を除く): 9172585

約数列:

[1, 5, 11, 55, 149, 745, 1639, 3517, 8195, 17585, 38687, 193435, 524033, 2620165, 5764363, 28821815]

約数ペア:

[(1, 28821815), (5, 5764363), (11, 2620165), (55, 524033), (149, 193435), (745, 38687), (1639, 17585), (3517, 8195)]