20438475

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{9397}}^1$

素因数の和:9439

約数の個数: 24

約数和(自身を含む): 34960560

約数和(自身を除く): 14522085

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 145, 435, 725, 2175, 9397, 28191, 46985, 140955, 234925, 272513, 704775, 817539, 1362565, 4087695, 6812825, 20438475]

約数ペア:

[(1, 20438475), (3, 6812825), (5, 4087695), (15, 1362565), (25, 817539), (29, 704775), (75, 272513), (87, 234925), (145, 140955), (435, 46985), (725, 28191), (2175, 9397)]