213888519

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{887}}^1$

素因数の和:1141

約数の個数: 40

約数和(自身を含む): 345982560

約数和(自身を除く): 132094041

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 229, 351, 687, 887, 1053, 2061, 2661, 2977, 6183, 7983, 8931, 11531, 18549, 23949, 26793, 34593, 71847, 80379, 103779, 203123, 241137, 311337, 609369, 934011, 1828107, 2640599, 5484321, 7921797, 16452963, 23765391, 71296173, 213888519]

約数ペア:

[(1, 213888519), (3, 71296173), (9, 23765391), (13, 16452963), (27, 7921797), (39, 5484321), (81, 2640599), (117, 1828107), (229, 934011), (351, 609369), (687, 311337), (887, 241137), (1053, 203123), (2061, 103779), (2661, 80379), (2977, 71847), (6183, 34593), (7983, 26793), (8931, 23949), (11531, 18549)]