21518316

素因数分解:

$2^2\times 3^2\times {\mathrm{137}}^1\times {\mathrm{4363}}^1$

素因数の和:4510

約数の個数: 36

約数和(自身を含む): 54803112

約数和(自身を除く): 33284796

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 137, 274, 411, 548, 822, 1233, 1644, 2466, 4363, 4932, 8726, 13089, 17452, 26178, 39267, 52356, 78534, 157068, 597731, 1195462, 1793193, 2390924, 3586386, 5379579, 7172772, 10759158, 21518316]

約数ペア:

[(1, 21518316), (2, 10759158), (3, 7172772), (4, 5379579), (6, 3586386), (9, 2390924), (12, 1793193), (18, 1195462), (36, 597731), (137, 157068), (274, 78534), (411, 52356), (548, 39267), (822, 26178), (1233, 17452), (1644, 13089), (2466, 8726), (4363, 4932)]