20778588

素因数分解:

$2^2\times 3^2\times {\mathrm{163}}^1\times {\mathrm{3541}}^1$

素因数の和:3714

約数の個数: 36

約数和(自身を含む): 52860808

約数和(自身を除く): 32082220

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 163, 326, 489, 652, 978, 1467, 1956, 2934, 3541, 5868, 7082, 10623, 14164, 21246, 31869, 42492, 63738, 127476, 577183, 1154366, 1731549, 2308732, 3463098, 5194647, 6926196, 10389294, 20778588]

約数ペア:

[(1, 20778588), (2, 10389294), (3, 6926196), (4, 5194647), (6, 3463098), (9, 2308732), (12, 1731549), (18, 1154366), (36, 577183), (163, 127476), (326, 63738), (489, 42492), (652, 31869), (978, 21246), (1467, 14164), (1956, 10623), (2934, 7082), (3541, 5868)]