19666899

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2383}}^1$

素因数の和:2527

約数の個数: 24

約数和(自身を含む): 32727552

約数和(自身を除く): 13060653

約数列:

[1, 3, 7, 9, 21, 63, 131, 393, 917, 1179, 2383, 2751, 7149, 8253, 16681, 21447, 50043, 150129, 312173, 936519, 2185211, 2809557, 6555633, 19666899]

約数ペア:

[(1, 19666899), (3, 6555633), (7, 2809557), (9, 2185211), (21, 936519), (63, 312173), (131, 150129), (393, 50043), (917, 21447), (1179, 16681), (2383, 8253), (2751, 7149)]