20926305

素因数分解:

$3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3121}}^1$

素因数の和:3281

約数の個数: 24

約数和(自身を含む): 36527400

約数和(自身を除く): 15601095

約数列:

[1, 3, 5, 9, 15, 45, 149, 447, 745, 1341, 2235, 3121, 6705, 9363, 15605, 28089, 46815, 140445, 465029, 1395087, 2325145, 4185261, 6975435, 20926305]

約数ペア:

[(1, 20926305), (3, 6975435), (5, 4185261), (9, 2325145), (15, 1395087), (45, 465029), (149, 140445), (447, 46815), (745, 28089), (1341, 15605), (2235, 9363), (3121, 6705)]