72207891

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67421}}^1$

素因数の和:67451

約数の個数: 24

約数和(自身を含む): 126213984

約数和(自身を除く): 54006093

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 67421, 202263, 471947, 606789, 1146157, 1415841, 3438471, 4247523, 8023099, 10315413, 24069297, 72207891]

約数ペア:

[(1, 72207891), (3, 24069297), (7, 10315413), (9, 8023099), (17, 4247523), (21, 3438471), (51, 1415841), (63, 1146157), (119, 606789), (153, 471947), (357, 202263), (1071, 67421)]