28004997

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 40550400

約数和(自身を除く): 12545403

約数列:

[1, 3, 31, 43, 47, 93, 129, 141, 149, 447, 1333, 1457, 2021, 3999, 4371, 4619, 6063, 6407, 7003, 13857, 19221, 21009, 62651, 187953, 198617, 217093, 301129, 595851, 651279, 903387, 9334999, 28004997]

約数ペア:

[(1, 28004997), (3, 9334999), (31, 903387), (43, 651279), (47, 595851), (93, 301129), (129, 217093), (141, 198617), (149, 187953), (447, 62651), (1333, 21009), (1457, 19221), (2021, 13857), (3999, 7003), (4371, 6407), (4619, 6063)]