25399257

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{227}}^1$

素因数の和:413

約数の個数: 32

約数和(自身を含む): 38814720

約数和(自身を除く): 13415463

約数列:

[1, 3, 13, 19, 39, 57, 151, 227, 247, 453, 681, 741, 1963, 2869, 2951, 4313, 5889, 8607, 8853, 12939, 34277, 37297, 56069, 102831, 111891, 168207, 445601, 651263, 1336803, 1953789, 8466419, 25399257]

約数ペア:

[(1, 25399257), (3, 8466419), (13, 1953789), (19, 1336803), (39, 651263), (57, 445601), (151, 168207), (227, 111891), (247, 102831), (453, 56069), (681, 37297), (741, 34277), (1963, 12939), (2869, 8853), (2951, 8607), (4313, 5889)]