21276171

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{8237}}^1$

素因数の和:8291

約数の個数: 24

約数和(自身を含む): 35983584

約数和(自身を除く): 14707413

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 8237, 24711, 57659, 74133, 172977, 337717, 518931, 1013151, 2364019, 3039453, 7092057, 21276171]

約数ペア:

[(1, 21276171), (3, 7092057), (7, 3039453), (9, 2364019), (21, 1013151), (41, 518931), (63, 337717), (123, 172977), (287, 74133), (369, 57659), (861, 24711), (2583, 8237)]