228831421

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:163

約数の個数: 64

約数和(自身を含む): 314944000

約数和(自身を除く): 86112579

約数列:

[1, 7, 13, 19, 37, 49, 73, 91, 133, 247, 259, 343, 481, 511, 637, 703, 931, 949, 1387, 1729, 1813, 2701, 3367, 3577, 4459, 4921, 6517, 6643, 9139, 9709, 12103, 12691, 18031, 18907, 23569, 25039, 34447, 35113, 46501, 51319, 63973, 67963, 84721, 126217, 132349, 164983, 241129, 245791, 325507, 359233, 447811, 475741, 667147, 883519, 926443, 1720537, 2514631, 3134677, 4670029, 6184633, 12043759, 17602417, 32690203, 228831421]

約数ペア:

[(1, 228831421), (7, 32690203), (13, 17602417), (19, 12043759), (37, 6184633), (49, 4670029), (73, 3134677), (91, 2514631), (133, 1720537), (247, 926443), (259, 883519), (343, 667147), (481, 475741), (511, 447811), (637, 359233), (703, 325507), (931, 245791), (949, 241129), (1387, 164983), (1729, 132349), (1813, 126217), (2701, 84721), (3367, 67963), (3577, 63973), (4459, 51319), (4921, 46501), (6517, 35113), (6643, 34447), (9139, 25039), (9709, 23569), (12103, 18907), (12691, 18031)]