209017445

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{19973}}^1$

素因数の和:20021

約数の個数: 32

約数和(自身を含む): 322140672

約数和(自身を除く): 113123227

約数列:

[1, 5, 7, 13, 23, 35, 65, 91, 115, 161, 299, 455, 805, 1495, 2093, 10465, 19973, 99865, 139811, 259649, 459379, 699055, 1298245, 1817543, 2296895, 3215653, 5971927, 9087715, 16078265, 29859635, 41803489, 209017445]

約数ペア:

[(1, 209017445), (5, 41803489), (7, 29859635), (13, 16078265), (23, 9087715), (35, 5971927), (65, 3215653), (91, 2296895), (115, 1817543), (161, 1298245), (299, 699055), (455, 459379), (805, 259649), (1495, 139811), (2093, 99865), (10465, 19973)]