213870813

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{1579}}^1$

素因数の和:1769

約数の個数: 32

約数和(自身を含む): 322775040

約数和(自身を除く): 108904227

約数列:

[1, 3, 13, 23, 39, 69, 151, 299, 453, 897, 1579, 1963, 3473, 4737, 5889, 10419, 20527, 36317, 45149, 61581, 108951, 135447, 238429, 472121, 715287, 1416363, 3099577, 5483867, 9298731, 16451601, 71290271, 213870813]

約数ペア:

[(1, 213870813), (3, 71290271), (13, 16451601), (23, 9298731), (39, 5483867), (69, 3099577), (151, 1416363), (299, 715287), (453, 472121), (897, 238429), (1579, 135447), (1963, 108951), (3473, 61581), (4737, 45149), (5889, 36317), (10419, 20527)]