21636601

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{601}}^1$

素因数の和:784

約数の個数: 16

約数和(自身を含む): 25621120

約数和(自身を除く): 3984519

約数列:

[1, 7, 37, 139, 259, 601, 973, 4207, 5143, 22237, 36001, 83539, 155659, 584773, 3090943, 21636601]

約数ペア:

[(1, 21636601), (7, 3090943), (37, 584773), (139, 155659), (259, 83539), (601, 36001), (973, 22237), (4207, 5143)]