81824561

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{241}}^1$

素因数の和:322

約数の個数: 36

約数和(自身を含む): 106020684

約数和(自身を除く): 24196123

約数列:

[1, 7, 13, 41, 49, 91, 169, 241, 287, 533, 637, 1183, 1687, 2009, 3133, 3731, 6929, 8281, 9881, 11809, 21931, 26117, 40729, 48503, 69167, 128453, 153517, 285103, 339521, 484169, 899171, 1669889, 1995721, 6294197, 11689223, 81824561]

約数ペア:

[(1, 81824561), (7, 11689223), (13, 6294197), (41, 1995721), (49, 1669889), (91, 899171), (169, 484169), (241, 339521), (287, 285103), (533, 153517), (637, 128453), (1183, 69167), (1687, 48503), (2009, 40729), (3133, 26117), (3731, 21931), (6929, 11809), (8281, 9881)]