20197725

素因数分解:

$3^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{3793}}^1$

素因数の和:3877

約数の個数: 24

約数和(自身を含む): 33872832

約数和(自身を除く): 13675107

約数列:

[1, 3, 5, 15, 25, 71, 75, 213, 355, 1065, 1775, 3793, 5325, 11379, 18965, 56895, 94825, 269303, 284475, 807909, 1346515, 4039545, 6732575, 20197725]

約数ペア:

[(1, 20197725), (3, 6732575), (5, 4039545), (15, 1346515), (25, 807909), (71, 284475), (75, 269303), (213, 94825), (355, 56895), (1065, 18965), (1775, 11379), (3793, 5325)]