21545168

素因数分解:

$2^4\times {\mathrm{137}}^1\times {\mathrm{9829}}^1$

素因数の和:9974

約数の個数: 20

約数和(自身を含む): 42052740

約数和(自身を除く): 20507572

約数列:

[1, 2, 4, 8, 16, 137, 274, 548, 1096, 2192, 9829, 19658, 39316, 78632, 157264, 1346573, 2693146, 5386292, 10772584, 21545168]

約数ペア:

[(1, 21545168), (2, 10772584), (4, 5386292), (8, 2693146), (16, 1346573), (137, 157264), (274, 78632), (548, 39316), (1096, 19658), (2192, 9829)]