21202955

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{727}}^1$

素因数の和:1058

約数の個数: 16

約数和(自身を含む): 26906880

約数和(自身を除く): 5703925

約数列:

[1, 5, 19, 95, 307, 727, 1535, 3635, 5833, 13813, 29165, 69065, 223189, 1115945, 4240591, 21202955]

約数ペア:

[(1, 21202955), (5, 4240591), (19, 1115945), (95, 223189), (307, 69065), (727, 29165), (1535, 13813), (3635, 5833)]