21715450

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^2\times {\mathrm{821}}^1$

素因数の和:879

約数の個数: 36

約数和(自身を含む): 42274638

約数和(自身を除く): 20559188

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 115, 230, 529, 575, 821, 1058, 1150, 1642, 2645, 4105, 5290, 8210, 13225, 18883, 20525, 26450, 37766, 41050, 94415, 188830, 434309, 472075, 868618, 944150, 2171545, 4343090, 10857725, 21715450]

約数ペア:

[(1, 21715450), (2, 10857725), (5, 4343090), (10, 2171545), (23, 944150), (25, 868618), (46, 472075), (50, 434309), (115, 188830), (230, 94415), (529, 41050), (575, 37766), (821, 26450), (1058, 20525), (1150, 18883), (1642, 13225), (2645, 8210), (4105, 5290)]