20098197

素因数分解:

$3^2\times 7^1\times {\mathrm{263}}^1\times {\mathrm{1213}}^1$

素因数の和:1489

約数の個数: 24

約数和(自身を含む): 33331584

約数和(自身を除く): 13233387

約数列:

[1, 3, 7, 9, 21, 63, 263, 789, 1213, 1841, 2367, 3639, 5523, 8491, 10917, 16569, 25473, 76419, 319019, 957057, 2233133, 2871171, 6699399, 20098197]

約数ペア:

[(1, 20098197), (3, 6699399), (7, 2871171), (9, 2233133), (21, 957057), (63, 319019), (263, 76419), (789, 25473), (1213, 16569), (1841, 10917), (2367, 8491), (3639, 5523)]