21122205

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5701}}^1$

素因数の和:5741

約数の個数: 32

約数和(自身を含む): 38317440

約数和(自身を除く): 17195235

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 95, 195, 247, 285, 741, 1235, 3705, 5701, 17103, 28505, 74113, 85515, 108319, 222339, 324957, 370565, 541595, 1111695, 1408147, 1624785, 4224441, 7040735, 21122205]

約数ペア:

[(1, 21122205), (3, 7040735), (5, 4224441), (13, 1624785), (15, 1408147), (19, 1111695), (39, 541595), (57, 370565), (65, 324957), (95, 222339), (195, 108319), (247, 85515), (285, 74113), (741, 28505), (1235, 17103), (3705, 5701)]