20503518

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{11353}}^1$

素因数の和:11408

約数の個数: 32

約数和(自身を含む): 47959296

約数和(自身を除く): 27455778

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 86, 129, 258, 301, 602, 903, 1806, 11353, 22706, 34059, 68118, 79471, 158942, 238413, 476826, 488179, 976358, 1464537, 2929074, 3417253, 6834506, 10251759, 20503518]

約数ペア:

[(1, 20503518), (2, 10251759), (3, 6834506), (6, 3417253), (7, 2929074), (14, 1464537), (21, 976358), (42, 488179), (43, 476826), (86, 238413), (129, 158942), (258, 79471), (301, 68118), (602, 34059), (903, 22706), (1806, 11353)]