221573235

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{6971}}^1$

素因数の和:7155

約数の個数: 32

約数和(自身を含む): 384185088

約数和(自身を除く): 162611853

約数列:

[1, 3, 5, 13, 15, 39, 65, 163, 195, 489, 815, 2119, 2445, 6357, 6971, 10595, 20913, 31785, 34855, 90623, 104565, 271869, 453115, 1136273, 1359345, 3408819, 5681365, 14771549, 17044095, 44314647, 73857745, 221573235]

約数ペア:

[(1, 221573235), (3, 73857745), (5, 44314647), (13, 17044095), (15, 14771549), (39, 5681365), (65, 3408819), (163, 1359345), (195, 1136273), (489, 453115), (815, 271869), (2119, 104565), (2445, 90623), (6357, 34855), (6971, 31785), (10595, 20913)]