20858295

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{449}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 35424000

約数和(自身を除く): 14565705

約数列:

[1, 3, 5, 15, 19, 57, 95, 163, 285, 449, 489, 815, 1347, 2245, 2445, 3097, 6735, 8531, 9291, 15485, 25593, 42655, 46455, 73187, 127965, 219561, 365935, 1097805, 1390553, 4171659, 6952765, 20858295]

約数ペア:

[(1, 20858295), (3, 6952765), (5, 4171659), (15, 1390553), (19, 1097805), (57, 365935), (95, 219561), (163, 127965), (285, 73187), (449, 46455), (489, 42655), (815, 25593), (1347, 15485), (2245, 9291), (2445, 8531), (3097, 6735)]