31395819

素因数分解:

$3^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{2347}}^1$

素因数の和:2384

約数の個数: 32

約数和(自身を含む): 52595200

約数和(自身を除く): 21199381

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 343, 637, 1029, 1911, 2347, 4459, 7041, 13377, 16429, 30511, 49287, 91533, 115003, 213577, 345009, 640731, 805021, 1495039, 2415063, 4485117, 10465273, 31395819]

約数ペア:

[(1, 31395819), (3, 10465273), (7, 4485117), (13, 2415063), (21, 1495039), (39, 805021), (49, 640731), (91, 345009), (147, 213577), (273, 115003), (343, 91533), (637, 49287), (1029, 30511), (1911, 16429), (2347, 13377), (4459, 7041)]