858711987

素因数分解:

$3^2\times 7^1\times {\mathrm{647}}^1\times {\mathrm{21067}}^1$

素因数の和:21727

約数の個数: 24

約数和(自身を含む): 1419814656

約数和(自身を除く): 561102669

約数列:

[1, 3, 7, 9, 21, 63, 647, 1941, 4529, 5823, 13587, 21067, 40761, 63201, 147469, 189603, 442407, 1327221, 13630349, 40891047, 95412443, 122673141, 286237329, 858711987]

約数ペア:

[(1, 858711987), (3, 286237329), (7, 122673141), (9, 95412443), (21, 40891047), (63, 13630349), (647, 1327221), (1941, 442407), (4529, 189603), (5823, 147469), (13587, 63201), (21067, 40761)]