128540879987

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{971}}^1\times {\mathrm{41227}}^1$

素因数の和:42243

約数の個数: 24

約数和(自身を含む): 146669434560

約数和(自身を除く): 18128554573

約数列:

[1, 13, 19, 169, 247, 971, 3211, 12623, 18449, 41227, 164099, 239837, 535951, 783313, 3117881, 6967363, 10183069, 40031417, 132379897, 520408421, 760596923, 6765309473, 9887759999, 128540879987]

約数ペア:

[(1, 128540879987), (13, 9887759999), (19, 6765309473), (169, 760596923), (247, 520408421), (971, 132379897), (3211, 40031417), (12623, 10183069), (18449, 6967363), (41227, 3117881), (164099, 783313), (239837, 535951)]