51894479

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1987}}^1$

素因数の和:2055

約数の個数: 24

約数和(自身を含む): 66629808

約数和(自身を除く): 14735329

約数列:

[1, 7, 13, 41, 49, 91, 287, 533, 637, 1987, 2009, 3731, 13909, 25831, 26117, 81467, 97363, 180817, 570269, 1059071, 1265719, 3991883, 7413497, 51894479]

約数ペア:

[(1, 51894479), (7, 7413497), (13, 3991883), (41, 1265719), (49, 1059071), (91, 570269), (287, 180817), (533, 97363), (637, 81467), (1987, 26117), (2009, 25831), (3731, 13909)]