20623569

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:317

約数の個数: 24

約数和(自身を含む): 29443680

約数和(自身を除く): 8820111

約数列:

[1, 3, 19, 57, 137, 139, 361, 411, 417, 1083, 2603, 2641, 7809, 7923, 19043, 49457, 50179, 57129, 148371, 150537, 361817, 1085451, 6874523, 20623569]

約数ペア:

[(1, 20623569), (3, 6874523), (19, 1085451), (57, 361817), (137, 150537), (139, 148371), (361, 57129), (411, 50179), (417, 49457), (1083, 19043), (2603, 7923), (2641, 7809)]