20216872

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{557}}^1$

素因数の和:925

約数の個数: 32

約数和(自身を含む): 41013000

約数和(自身を除く): 20796128

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 349, 557, 698, 1114, 1396, 2228, 2792, 4456, 4537, 7241, 9074, 14482, 18148, 28964, 36296, 57928, 194393, 388786, 777572, 1555144, 2527109, 5054218, 10108436, 20216872]

約数ペア:

[(1, 20216872), (2, 10108436), (4, 5054218), (8, 2527109), (13, 1555144), (26, 777572), (52, 388786), (104, 194393), (349, 57928), (557, 36296), (698, 28964), (1114, 18148), (1396, 14482), (2228, 9074), (2792, 7241), (4456, 4537)]