218390523

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{971}}^1$

素因数の和:1139

約数の個数: 32

約数和(自身を含む): 322237440

約数和(自身を除く): 103846917

約数列:

[1, 3, 13, 39, 73, 79, 219, 237, 949, 971, 1027, 2847, 2913, 3081, 5767, 12623, 17301, 37869, 70883, 74971, 76709, 212649, 224913, 230127, 921479, 997217, 2764437, 2991651, 5599757, 16799271, 72796841, 218390523]

約数ペア:

[(1, 218390523), (3, 72796841), (13, 16799271), (39, 5599757), (73, 2991651), (79, 2764437), (219, 997217), (237, 921479), (949, 230127), (971, 224913), (1027, 212649), (2847, 76709), (2913, 74971), (3081, 70883), (5767, 37869), (12623, 17301)]