644574

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:264

約数の個数: 32

約数和(自身を含む): 1497600

約数和(自身を除く): 853026

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 103, 149, 206, 298, 309, 447, 618, 721, 894, 1043, 1442, 2086, 2163, 3129, 4326, 6258, 15347, 30694, 46041, 92082, 107429, 214858, 322287, 644574]

約数ペア:

[(1, 644574), (2, 322287), (3, 214858), (6, 107429), (7, 92082), (14, 46041), (21, 30694), (42, 15347), (103, 6258), (149, 4326), (206, 3129), (298, 2163), (309, 2086), (447, 1442), (618, 1043), (721, 894)]