19129820

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{18047}}^1$

素因数の和:18109

約数の個数: 24

約数和(自身を含む): 40932864

約数和(自身を除く): 21803044

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 18047, 36094, 72188, 90235, 180470, 360940, 956491, 1912982, 3825964, 4782455, 9564910, 19129820]

約数ペア:

[(1, 19129820), (2, 9564910), (4, 4782455), (5, 3825964), (10, 1912982), (20, 956491), (53, 360940), (106, 180470), (212, 90235), (265, 72188), (530, 36094), (1060, 18047)]