21703425

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^2\times {\mathrm{131}}^1$

素因数の和:238

約数の個数: 36

約数和(自身を含む): 36942576

約数和(自身を除く): 15239151

約数列:

[1, 3, 5, 15, 25, 47, 75, 131, 141, 235, 393, 655, 705, 1175, 1965, 2209, 3275, 3525, 6157, 6627, 9825, 11045, 18471, 30785, 33135, 55225, 92355, 153925, 165675, 289379, 461775, 868137, 1446895, 4340685, 7234475, 21703425]

約数ペア:

[(1, 21703425), (3, 7234475), (5, 4340685), (15, 1446895), (25, 868137), (47, 461775), (75, 289379), (131, 165675), (141, 153925), (235, 92355), (393, 55225), (655, 33135), (705, 30785), (1175, 18471), (1965, 11045), (2209, 9825), (3275, 6627), (3525, 6157)]