18186399

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:217

約数の個数: 72

約数和(自身を含む): 34998912

約数和(自身を除く): 16812513

約数列:

[1, 3, 7, 9, 11, 21, 23, 33, 49, 63, 69, 77, 99, 147, 161, 163, 207, 231, 253, 441, 483, 489, 539, 693, 759, 1127, 1141, 1449, 1467, 1617, 1771, 1793, 2277, 3381, 3423, 3749, 4851, 5313, 5379, 7987, 10143, 10269, 11247, 12397, 12551, 15939, 16137, 23961, 26243, 33741, 37191, 37653, 41239, 71883, 78729, 87857, 111573, 112959, 123717, 183701, 236187, 263571, 288673, 371151, 551103, 790713, 866019, 1653309, 2020711, 2598057, 6062133, 18186399]

約数ペア:

[(1, 18186399), (3, 6062133), (7, 2598057), (9, 2020711), (11, 1653309), (21, 866019), (23, 790713), (33, 551103), (49, 371151), (63, 288673), (69, 263571), (77, 236187), (99, 183701), (147, 123717), (161, 112959), (163, 111573), (207, 87857), (231, 78729), (253, 71883), (441, 41239), (483, 37653), (489, 37191), (539, 33741), (693, 26243), (759, 23961), (1127, 16137), (1141, 15939), (1449, 12551), (1467, 12397), (1617, 11247), (1771, 10269), (1793, 10143), (2277, 7987), (3381, 5379), (3423, 5313), (3749, 4851)]