20215856

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{74323}}^1$

素因数の和:74348

約数の個数: 20

約数和(自身を含む): 41472792

約数和(自身を除く): 21256936

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 74323, 148646, 297292, 594584, 1189168, 1263491, 2526982, 5053964, 10107928, 20215856]

約数ペア:

[(1, 20215856), (2, 10107928), (4, 5053964), (8, 2526982), (16, 1263491), (17, 1189168), (34, 594584), (68, 297292), (136, 148646), (272, 74323)]