18224425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{313}}^1$

素因数の和:477

約数の個数: 24

約数和(自身を含む): 24179256

約数和(自身を除く): 5954831

約数列:

[1, 5, 17, 25, 85, 137, 313, 425, 685, 1565, 2329, 3425, 5321, 7825, 11645, 26605, 42881, 58225, 133025, 214405, 728977, 1072025, 3644885, 18224425]

約数ペア:

[(1, 18224425), (5, 3644885), (17, 1072025), (25, 728977), (85, 214405), (137, 133025), (313, 58225), (425, 42881), (685, 26605), (1565, 11645), (2329, 7825), (3425, 5321)]