1187991

素因数分解:

$3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:295

約数の個数: 24

約数和(自身を含む): 1990560

約数和(自身を除く): 802569

約数列:

[1, 3, 7, 9, 21, 63, 109, 173, 327, 519, 763, 981, 1211, 1557, 2289, 3633, 6867, 10899, 18857, 56571, 131999, 169713, 395997, 1187991]

約数ペア:

[(1, 1187991), (3, 395997), (7, 169713), (9, 131999), (21, 56571), (63, 18857), (109, 10899), (173, 6867), (327, 3633), (519, 2289), (763, 1557), (981, 1211)]