16719475

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:307

約数の個数: 24

約数和(自身を含む): 21562112

約数和(自身を除く): 4842637

約数列:

[1, 5, 25, 43, 103, 151, 215, 515, 755, 1075, 2575, 3775, 4429, 6493, 15553, 22145, 32465, 77765, 110725, 162325, 388825, 668779, 3343895, 16719475]

約数ペア:

[(1, 16719475), (5, 3343895), (25, 668779), (43, 388825), (103, 162325), (151, 110725), (215, 77765), (515, 32465), (755, 22145), (1075, 15553), (2575, 6493), (3775, 4429)]