51861999

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{727}}^1$

素因数の和:859

約数の個数: 32

約数和(自身を含む): 82001920

約数和(自身を除く): 30139921

約数列:

[1, 3, 7, 21, 43, 79, 129, 237, 301, 553, 727, 903, 1659, 2181, 3397, 5089, 10191, 15267, 23779, 31261, 57433, 71337, 93783, 172299, 218827, 402031, 656481, 1206093, 2469619, 7408857, 17287333, 51861999]

約数ペア:

[(1, 51861999), (3, 17287333), (7, 7408857), (21, 2469619), (43, 1206093), (79, 656481), (129, 402031), (237, 218827), (301, 172299), (553, 93783), (727, 71337), (903, 57433), (1659, 31261), (2181, 23779), (3397, 15267), (5089, 10191)]