21800097

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{569}}^1$

素因数の和:635

約数の個数: 40

約数和(自身を含む): 36416160

約数和(自身を除く): 14616063

約数列:

[1, 3, 9, 11, 27, 33, 43, 81, 99, 129, 297, 387, 473, 569, 891, 1161, 1419, 1707, 3483, 4257, 5121, 6259, 12771, 15363, 18777, 24467, 38313, 46089, 56331, 73401, 168993, 220203, 269137, 506979, 660609, 807411, 1981827, 2422233, 7266699, 21800097]

約数ペア:

[(1, 21800097), (3, 7266699), (9, 2422233), (11, 1981827), (27, 807411), (33, 660609), (43, 506979), (81, 269137), (99, 220203), (129, 168993), (297, 73401), (387, 56331), (473, 46089), (569, 38313), (891, 24467), (1161, 18777), (1419, 15363), (1707, 12771), (3483, 6259), (4257, 5121)]