20902425

素因数分解:

$3^1\times 5^2\times {\mathrm{337}}^1\times {\mathrm{827}}^1$

素因数の和:1177

約数の個数: 24

約数和(自身を含む): 34703136

約数和(自身を除く): 13800711

約数列:

[1, 3, 5, 15, 25, 75, 337, 827, 1011, 1685, 2481, 4135, 5055, 8425, 12405, 20675, 25275, 62025, 278699, 836097, 1393495, 4180485, 6967475, 20902425]

約数ペア:

[(1, 20902425), (3, 6967475), (5, 4180485), (15, 1393495), (25, 836097), (75, 278699), (337, 62025), (827, 25275), (1011, 20675), (1685, 12405), (2481, 8425), (4135, 5055)]