81188163

素因数分解:

$3^4\times 7^1\times {\mathrm{31}}^2\times {\mathrm{149}}^1$

素因数の和:230

約数の個数: 60

約数和(自身を含む): 144183600

約数和(自身を除く): 62995437

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 81, 93, 149, 189, 217, 279, 447, 567, 651, 837, 961, 1043, 1341, 1953, 2511, 2883, 3129, 4023, 4619, 5859, 6727, 8649, 9387, 12069, 13857, 17577, 20181, 25947, 28161, 32333, 41571, 60543, 77841, 84483, 96999, 124713, 143189, 181629, 290997, 374139, 429567, 544887, 872991, 1002323, 1288701, 2618973, 3006969, 3866103, 9020907, 11598309, 27062721, 81188163]

約数ペア:

[(1, 81188163), (3, 27062721), (7, 11598309), (9, 9020907), (21, 3866103), (27, 3006969), (31, 2618973), (63, 1288701), (81, 1002323), (93, 872991), (149, 544887), (189, 429567), (217, 374139), (279, 290997), (447, 181629), (567, 143189), (651, 124713), (837, 96999), (961, 84483), (1043, 77841), (1341, 60543), (1953, 41571), (2511, 32333), (2883, 28161), (3129, 25947), (4023, 20181), (4619, 17577), (5859, 13857), (6727, 12069), (8649, 9387)]