18707128

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{4523}}^1$

素因数の和:4587

約数の個数: 32

約数和(自身を含む): 39087360

約数和(自身を除く): 20380232

約数列:

[1, 2, 4, 8, 11, 22, 44, 47, 88, 94, 188, 376, 517, 1034, 2068, 4136, 4523, 9046, 18092, 36184, 49753, 99506, 199012, 212581, 398024, 425162, 850324, 1700648, 2338391, 4676782, 9353564, 18707128]

約数ペア:

[(1, 18707128), (2, 9353564), (4, 4676782), (8, 2338391), (11, 1700648), (22, 850324), (44, 425162), (47, 398024), (88, 212581), (94, 199012), (188, 99506), (376, 49753), (517, 36184), (1034, 18092), (2068, 9046), (4136, 4523)]