128694531

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 207301248

約数和(自身を除く): 78606717

約数列:

[1, 3, 7, 21, 41, 49, 123, 131, 147, 163, 287, 393, 489, 861, 917, 1141, 2009, 2751, 3423, 5371, 6027, 6419, 6683, 7987, 16113, 19257, 20049, 21353, 23961, 37597, 46781, 64059, 112791, 140343, 149471, 263179, 327467, 448413, 789537, 875473, 982401, 1046297, 2626419, 3138891, 6128311, 18384933, 42898177, 128694531]

約数ペア:

[(1, 128694531), (3, 42898177), (7, 18384933), (21, 6128311), (41, 3138891), (49, 2626419), (123, 1046297), (131, 982401), (147, 875473), (163, 789537), (287, 448413), (393, 327467), (489, 263179), (861, 149471), (917, 140343), (1141, 112791), (2009, 64059), (2751, 46781), (3423, 37597), (5371, 23961), (6027, 21353), (6419, 20049), (6683, 19257), (7987, 16113)]