20973681

素因数分解:

$3^3\times {\mathrm{617}}^1\times {\mathrm{1259}}^1$

素因数の和:1885

約数の個数: 16

約数和(自身を含む): 31147200

約数和(自身を除く): 10173519

約数列:

[1, 3, 9, 27, 617, 1259, 1851, 3777, 5553, 11331, 16659, 33993, 776803, 2330409, 6991227, 20973681]

約数ペア:

[(1, 20973681), (3, 6991227), (9, 2330409), (27, 776803), (617, 33993), (1259, 16659), (1851, 11331), (3777, 5553)]