20995865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{1667}}^1$

素因数の和:1912

約数の個数: 16

約数和(自身を含む): 27622080

約数和(自身を除く): 6626215

約数列:

[1, 5, 11, 55, 229, 1145, 1667, 2519, 8335, 12595, 18337, 91685, 381743, 1908715, 4199173, 20995865]

約数ペア:

[(1, 20995865), (5, 4199173), (11, 1908715), (55, 381743), (229, 91685), (1145, 18337), (1667, 12595), (2519, 8335)]