18890868

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{271}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 45726464

約数和(自身を除く): 26835596

約数列:

[1, 2, 3, 4, 6, 12, 37, 74, 111, 148, 157, 222, 271, 314, 444, 471, 542, 628, 813, 942, 1084, 1626, 1884, 3252, 5809, 10027, 11618, 17427, 20054, 23236, 30081, 34854, 40108, 42547, 60162, 69708, 85094, 120324, 127641, 170188, 255282, 510564, 1574239, 3148478, 4722717, 6296956, 9445434, 18890868]

約数ペア:

[(1, 18890868), (2, 9445434), (3, 6296956), (4, 4722717), (6, 3148478), (12, 1574239), (37, 510564), (74, 255282), (111, 170188), (148, 127641), (157, 120324), (222, 85094), (271, 69708), (314, 60162), (444, 42547), (471, 40108), (542, 34854), (628, 30081), (813, 23236), (942, 20054), (1084, 17427), (1626, 11618), (1884, 10027), (3252, 5809)]