72291987

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{877}}^1$

素因数の和:1000

約数の個数: 32

約数和(自身を含む): 111260160

約数和(自身を除く): 38968173

約数列:

[1, 3, 9, 27, 43, 71, 129, 213, 387, 639, 877, 1161, 1917, 2631, 3053, 7893, 9159, 23679, 27477, 37711, 62267, 82431, 113133, 186801, 339399, 560403, 1018197, 1681209, 2677481, 8032443, 24097329, 72291987]

約数ペア:

[(1, 72291987), (3, 24097329), (9, 8032443), (27, 2677481), (43, 1681209), (71, 1018197), (129, 560403), (213, 339399), (387, 186801), (639, 113133), (877, 82431), (1161, 62267), (1917, 37711), (2631, 27477), (3053, 23679), (7893, 9159)]