21068772

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 50645952

約数和(自身を除く): 29577180

約数列:

[1, 2, 3, 4, 6, 12, 53, 106, 157, 159, 211, 212, 314, 318, 422, 471, 628, 633, 636, 844, 942, 1266, 1884, 2532, 8321, 11183, 16642, 22366, 24963, 33127, 33284, 33549, 44732, 49926, 66254, 67098, 99381, 99852, 132508, 134196, 198762, 397524, 1755731, 3511462, 5267193, 7022924, 10534386, 21068772]

約数ペア:

[(1, 21068772), (2, 10534386), (3, 7022924), (4, 5267193), (6, 3511462), (12, 1755731), (53, 397524), (106, 198762), (157, 134196), (159, 132508), (211, 99852), (212, 99381), (314, 67098), (318, 66254), (422, 49926), (471, 44732), (628, 33549), (633, 33284), (636, 33127), (844, 24963), (942, 22366), (1266, 16642), (1884, 11183), (2532, 8321)]