20623239

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^3\times {\mathrm{149}}^1$

素因数の和:201

約数の個数: 48

約数和(自身を含む): 37128000

約数和(自身を除く): 16504761

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 149, 169, 273, 447, 507, 819, 1043, 1183, 1341, 1521, 1937, 2197, 3129, 3549, 5811, 6591, 9387, 10647, 13559, 15379, 17433, 19773, 25181, 40677, 46137, 75543, 122031, 138411, 176267, 226629, 327353, 528801, 982059, 1586403, 2291471, 2946177, 6874413, 20623239]

約数ペア:

[(1, 20623239), (3, 6874413), (7, 2946177), (9, 2291471), (13, 1586403), (21, 982059), (39, 528801), (63, 327353), (91, 226629), (117, 176267), (149, 138411), (169, 122031), (273, 75543), (447, 46137), (507, 40677), (819, 25181), (1043, 19773), (1183, 17433), (1341, 15379), (1521, 13559), (1937, 10647), (2197, 9387), (3129, 6591), (3549, 5811)]