18080253

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:263

約数の個数: 40

約数和(自身を含む): 28749600

約数和(自身を除く): 10669347

約数列:

[1, 3, 9, 27, 29, 43, 81, 87, 129, 179, 261, 387, 537, 783, 1161, 1247, 1611, 2349, 3483, 3741, 4833, 5191, 7697, 11223, 14499, 15573, 23091, 33669, 46719, 69273, 101007, 140157, 207819, 223213, 420471, 623457, 669639, 2008917, 6026751, 18080253]

約数ペア:

[(1, 18080253), (3, 6026751), (9, 2008917), (27, 669639), (29, 623457), (43, 420471), (81, 223213), (87, 207819), (129, 140157), (179, 101007), (261, 69273), (387, 46719), (537, 33669), (783, 23091), (1161, 15573), (1247, 14499), (1611, 11223), (2349, 7697), (3483, 5191), (3741, 4833)]