64891974

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{220721}}^1$

素因数の和:220740

約数の個数: 24

約数和(自身を含む): 150973848

約数和(自身を除く): 86081874

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 220721, 441442, 662163, 1324326, 1545047, 3090094, 4635141, 9270282, 10815329, 21630658, 32445987, 64891974]

約数ペア:

[(1, 64891974), (2, 32445987), (3, 21630658), (6, 10815329), (7, 9270282), (14, 4635141), (21, 3090094), (42, 1545047), (49, 1324326), (98, 662163), (147, 441442), (294, 220721)]