21781098

素因数分解:

$2^1\times 3^2\times {\mathrm{241}}^1\times {\mathrm{5021}}^1$

素因数の和:5270

約数の個数: 24

約数和(自身を含む): 47397636

約数和(自身を除く): 25616538

約数列:

[1, 2, 3, 6, 9, 18, 241, 482, 723, 1446, 2169, 4338, 5021, 10042, 15063, 30126, 45189, 90378, 1210061, 2420122, 3630183, 7260366, 10890549, 21781098]

約数ペア:

[(1, 21781098), (2, 10890549), (3, 7260366), (6, 3630183), (9, 2420122), (18, 1210061), (241, 90378), (482, 45189), (723, 30126), (1446, 15063), (2169, 10042), (4338, 5021)]