21902235

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^2\times {\mathrm{661}}^1$

素因数の和:763

約数の個数: 24

約数和(自身を含む): 35859216

約数和(自身を除く): 13956981

約数列:

[1, 3, 5, 15, 47, 141, 235, 661, 705, 1983, 2209, 3305, 6627, 9915, 11045, 31067, 33135, 93201, 155335, 466005, 1460149, 4380447, 7300745, 21902235]

約数ペア:

[(1, 21902235), (3, 7300745), (5, 4380447), (15, 1460149), (47, 466005), (141, 155335), (235, 93201), (661, 33135), (705, 31067), (1983, 11045), (2209, 9915), (3305, 6627)]