20090145609

素因数分解:

$3^4\times {\mathrm{991}}^1\times {\mathrm{250279}}^1$

素因数の和:251282

約数の個数: 20

約数和(自身を含む): 30041608960

約数和(自身を除く): 9951463351

約数列:

[1, 3, 9, 27, 81, 991, 2973, 8919, 26757, 80271, 250279, 750837, 2252511, 6757533, 20272599, 248026489, 744079467, 2232238401, 6696715203, 20090145609]

約数ペア:

[(1, 20090145609), (3, 6696715203), (9, 2232238401), (27, 744079467), (81, 248026489), (991, 20272599), (2973, 6757533), (8919, 2252511), (26757, 750837), (80271, 250279)]