253390319

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{827}}^1$

素因数の和:904

約数の個数: 36

約数和(自身を含む): 328200984

約数和(自身を除く): 74810665

約数列:

[1, 7, 13, 37, 49, 91, 169, 259, 481, 637, 827, 1183, 1813, 3367, 5789, 6253, 8281, 10751, 23569, 30599, 40523, 43771, 75257, 139763, 214193, 306397, 397787, 526799, 978341, 1499351, 2784509, 5171231, 6848387, 19491563, 36198617, 253390319]

約数ペア:

[(1, 253390319), (7, 36198617), (13, 19491563), (37, 6848387), (49, 5171231), (91, 2784509), (169, 1499351), (259, 978341), (481, 526799), (637, 397787), (827, 306397), (1183, 214193), (1813, 139763), (3367, 75257), (5789, 43771), (6253, 40523), (8281, 30599), (10751, 23569)]