18045423

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 30366336

約数和(自身を除く): 12320913

約数列:

[1, 3, 9, 11, 27, 33, 43, 81, 99, 129, 157, 243, 297, 387, 471, 473, 891, 1161, 1413, 1419, 1727, 2673, 3483, 4239, 4257, 5181, 6751, 10449, 12717, 12771, 15543, 20253, 38151, 38313, 46629, 60759, 74261, 114939, 139887, 182277, 222783, 419661, 546831, 668349, 1640493, 2005047, 6015141, 18045423]

約数ペア:

[(1, 18045423), (3, 6015141), (9, 2005047), (11, 1640493), (27, 668349), (33, 546831), (43, 419661), (81, 222783), (99, 182277), (129, 139887), (157, 114939), (243, 74261), (297, 60759), (387, 46629), (471, 38313), (473, 38151), (891, 20253), (1161, 15543), (1413, 12771), (1419, 12717), (1727, 10449), (2673, 6751), (3483, 5181), (4239, 4257)]