20948985

素因数分解:

$3^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{3083}}^1$

素因数の和:3245

約数の個数: 24

約数和(自身を含む): 36563904

約数和(自身を除く): 15614919

約数列:

[1, 3, 5, 9, 15, 45, 151, 453, 755, 1359, 2265, 3083, 6795, 9249, 15415, 27747, 46245, 138735, 465533, 1396599, 2327665, 4189797, 6982995, 20948985]

約数ペア:

[(1, 20948985), (3, 6982995), (5, 4189797), (9, 2327665), (15, 1396599), (45, 465533), (151, 138735), (453, 46245), (755, 27747), (1359, 15415), (2265, 9249), (3083, 6795)]