15687581

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:201

約数の個数: 32

約数和(自身を含む): 20471808

約数和(自身を除く): 4784227

約数列:

[1, 7, 13, 31, 67, 83, 91, 217, 403, 469, 581, 871, 1079, 2077, 2573, 2821, 5561, 6097, 7553, 14539, 18011, 27001, 33449, 38927, 72293, 172391, 189007, 234143, 506051, 1206737, 2241083, 15687581]

約数ペア:

[(1, 15687581), (7, 2241083), (13, 1206737), (31, 506051), (67, 234143), (83, 189007), (91, 172391), (217, 72293), (403, 38927), (469, 33449), (581, 27001), (871, 18011), (1079, 14539), (2077, 7553), (2573, 6097), (2821, 5561)]