81287802

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{105023}}^1$

素因数の和:105074

約数の個数: 24

約数和(自身を含む): 180221184

約数和(自身を除く): 98933382

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 774, 105023, 210046, 315069, 630138, 945207, 1890414, 4515989, 9031978, 13547967, 27095934, 40643901, 81287802]

約数ペア:

[(1, 81287802), (2, 40643901), (3, 27095934), (6, 13547967), (9, 9031978), (18, 4515989), (43, 1890414), (86, 945207), (129, 630138), (258, 315069), (387, 210046), (774, 105023)]