247401

素因数分解:

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

素因数の和:51

約数の個数: 48

約数和(自身を含む): 492480

約数和(自身を除く): 245079

約数列:

[1, 3, 7, 9, 11, 17, 21, 27, 33, 49, 51, 63, 77, 99, 119, 147, 153, 187, 189, 231, 297, 357, 441, 459, 539, 561, 693, 833, 1071, 1309, 1323, 1617, 1683, 2079, 2499, 3213, 3927, 4851, 5049, 7497, 9163, 11781, 14553, 22491, 27489, 35343, 82467, 247401]

約数ペア:

[(1, 247401), (3, 82467), (7, 35343), (9, 27489), (11, 22491), (17, 14553), (21, 11781), (27, 9163), (33, 7497), (49, 5049), (51, 4851), (63, 3927), (77, 3213), (99, 2499), (119, 2079), (147, 1683), (153, 1617), (187, 1323), (189, 1309), (231, 1071), (297, 833), (357, 693), (441, 561), (459, 539)]