6625557

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{521}}^1$

素因数の和:690

約数の個数: 20

約数和(自身を含む): 9979596

約数和(自身を除く): 3354039

約数列:

[1, 3, 9, 27, 81, 157, 471, 521, 1413, 1563, 4239, 4689, 12717, 14067, 42201, 81797, 245391, 736173, 2208519, 6625557]

約数ペア:

[(1, 6625557), (3, 2208519), (9, 736173), (27, 245391), (81, 81797), (157, 42201), (471, 14067), (521, 12717), (1413, 4689), (1563, 4239)]