21115638

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{19231}}^1$

素因数の和:19300

約数の個数: 24

約数和(自身を含む): 46502976

約数和(自身を除く): 25387338

約数列:

[1, 2, 3, 6, 9, 18, 61, 122, 183, 366, 549, 1098, 19231, 38462, 57693, 115386, 173079, 346158, 1173091, 2346182, 3519273, 7038546, 10557819, 21115638]

約数ペア:

[(1, 21115638), (2, 10557819), (3, 7038546), (6, 3519273), (9, 2346182), (18, 1173091), (61, 346158), (122, 173079), (183, 115386), (366, 57693), (549, 38462), (1098, 19231)]