21136188

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1\times {\mathrm{199}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 50803200

約数和(自身を除く): 29667012

約数列:

[1, 2, 3, 4, 6, 12, 53, 106, 159, 167, 199, 212, 318, 334, 398, 501, 597, 636, 668, 796, 1002, 1194, 2004, 2388, 8851, 10547, 17702, 21094, 26553, 31641, 33233, 35404, 42188, 53106, 63282, 66466, 99699, 106212, 126564, 132932, 199398, 398796, 1761349, 3522698, 5284047, 7045396, 10568094, 21136188]

約数ペア:

[(1, 21136188), (2, 10568094), (3, 7045396), (4, 5284047), (6, 3522698), (12, 1761349), (53, 398796), (106, 199398), (159, 132932), (167, 126564), (199, 106212), (212, 99699), (318, 66466), (334, 63282), (398, 53106), (501, 42188), (597, 35404), (636, 33233), (668, 31641), (796, 26553), (1002, 21094), (1194, 17702), (2004, 10547), (2388, 8851)]