251159139

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21319}}^1$

素因数の和:21360

約数の個数: 48

約数和(自身を含む): 478932480

約数和(自身を除く): 227773341

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 51, 63, 77, 99, 119, 153, 187, 231, 357, 561, 693, 1071, 1309, 1683, 3927, 11781, 21319, 63957, 149233, 191871, 234509, 362423, 447699, 703527, 1087269, 1343097, 1641563, 2110581, 2536961, 3261807, 3986653, 4924689, 7610883, 11959959, 14774067, 22832649, 27906571, 35879877, 83719713, 251159139]

約数ペア:

[(1, 251159139), (3, 83719713), (7, 35879877), (9, 27906571), (11, 22832649), (17, 14774067), (21, 11959959), (33, 7610883), (51, 4924689), (63, 3986653), (77, 3261807), (99, 2536961), (119, 2110581), (153, 1641563), (187, 1343097), (231, 1087269), (357, 703527), (561, 447699), (693, 362423), (1071, 234509), (1309, 191871), (1683, 149233), (3927, 63957), (11781, 21319)]