21560578

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:298

約数の個数: 32

約数和(自身を含む): 35957376

約数和(自身を除く): 14396798

約数列:

[1, 2, 13, 26, 83, 97, 103, 166, 194, 206, 1079, 1261, 1339, 2158, 2522, 2678, 8051, 8549, 9991, 16102, 17098, 19982, 104663, 111137, 129883, 209326, 222274, 259766, 829253, 1658506, 10780289, 21560578]

約数ペア:

[(1, 21560578), (2, 10780289), (13, 1658506), (26, 829253), (83, 259766), (97, 222274), (103, 209326), (166, 129883), (194, 111137), (206, 104663), (1079, 19982), (1261, 17098), (1339, 16102), (2158, 9991), (2522, 8549), (2678, 8051)]