255655197

素因数分解:

$3^6\times 7^2\times {\mathrm{17}}^1\times {\mathrm{421}}^1$

素因数の和:470

約数の個数: 84

約数和(自身を含む): 473238396

約数和(自身を除く): 217583199

約数列:

[1, 3, 7, 9, 17, 21, 27, 49, 51, 63, 81, 119, 147, 153, 189, 243, 357, 421, 441, 459, 567, 729, 833, 1071, 1263, 1323, 1377, 1701, 2499, 2947, 3213, 3789, 3969, 4131, 5103, 7157, 7497, 8841, 9639, 11367, 11907, 12393, 20629, 21471, 22491, 26523, 28917, 34101, 35721, 50099, 61887, 64413, 67473, 79569, 86751, 102303, 150297, 185661, 193239, 202419, 238707, 306909, 350693, 450891, 556983, 579717, 607257, 716121, 1052079, 1352673, 1670949, 1739151, 2148363, 3156237, 4058019, 5012847, 5217453, 9468711, 12174057, 15038541, 28406133, 36522171, 85218399, 255655197]

約数ペア:

[(1, 255655197), (3, 85218399), (7, 36522171), (9, 28406133), (17, 15038541), (21, 12174057), (27, 9468711), (49, 5217453), (51, 5012847), (63, 4058019), (81, 3156237), (119, 2148363), (147, 1739151), (153, 1670949), (189, 1352673), (243, 1052079), (357, 716121), (421, 607257), (441, 579717), (459, 556983), (567, 450891), (729, 350693), (833, 306909), (1071, 238707), (1263, 202419), (1323, 193239), (1377, 185661), (1701, 150297), (2499, 102303), (2947, 86751), (3213, 79569), (3789, 67473), (3969, 64413), (4131, 61887), (5103, 50099), (7157, 35721), (7497, 34101), (8841, 28917), (9639, 26523), (11367, 22491), (11907, 21471), (12393, 20629)]