81801867

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{577}}^1$

素因数の和:787

約数の個数: 32

約数和(自身を含む): 128584192

約数和(自身を除く): 46782325

約数列:

[1, 3, 7, 21, 43, 129, 157, 301, 471, 577, 903, 1099, 1731, 3297, 4039, 6751, 12117, 20253, 24811, 47257, 74433, 90589, 141771, 173677, 271767, 521031, 634123, 1902369, 3895327, 11685981, 27267289, 81801867]

約数ペア:

[(1, 81801867), (3, 27267289), (7, 11685981), (21, 3895327), (43, 1902369), (129, 634123), (157, 521031), (301, 271767), (471, 173677), (577, 141771), (903, 90589), (1099, 74433), (1731, 47257), (3297, 24811), (4039, 20253), (6751, 12117)]