20717565

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{521}}^1$

素因数の和:781

約数の個数: 32

約数和(自身を含む): 36381312

約数和(自身を除く): 15663747

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 241, 521, 723, 1205, 1563, 2605, 2651, 3615, 5731, 7815, 7953, 13255, 17193, 28655, 39765, 85965, 125561, 376683, 627805, 1381171, 1883415, 4143513, 6905855, 20717565]

約数ペア:

[(1, 20717565), (3, 6905855), (5, 4143513), (11, 1883415), (15, 1381171), (33, 627805), (55, 376683), (165, 125561), (241, 85965), (521, 39765), (723, 28655), (1205, 17193), (1563, 13255), (2605, 7953), (2651, 7815), (3615, 5731)]