20049997

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:193

約数の個数: 32

約数和(自身を含む): 24837120

約数和(自身を除く): 4787123

約数列:

[1, 11, 19, 23, 43, 97, 209, 253, 437, 473, 817, 989, 1067, 1843, 2231, 4171, 4807, 8987, 10879, 18791, 20273, 24541, 42389, 45881, 79249, 95933, 206701, 466279, 871739, 1055263, 1822727, 20049997]

約数ペア:

[(1, 20049997), (11, 1822727), (19, 1055263), (23, 871739), (43, 466279), (97, 206701), (209, 95933), (253, 79249), (437, 45881), (473, 42389), (817, 24541), (989, 20273), (1067, 18791), (1843, 10879), (2231, 8987), (4171, 4807)]