18522207

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 31574400

約数和(自身を除く): 13052193

約数列:

[1, 3, 9, 11, 19, 33, 43, 57, 99, 129, 171, 209, 229, 387, 473, 627, 687, 817, 1419, 1881, 2061, 2451, 2519, 4257, 4351, 7353, 7557, 8987, 9847, 13053, 22671, 26961, 29541, 39159, 47861, 80883, 88623, 108317, 143583, 187093, 324951, 430749, 561279, 974853, 1683837, 2058023, 6174069, 18522207]

約数ペア:

[(1, 18522207), (3, 6174069), (9, 2058023), (11, 1683837), (19, 974853), (33, 561279), (43, 430749), (57, 324951), (99, 187093), (129, 143583), (171, 108317), (209, 88623), (229, 80883), (387, 47861), (473, 39159), (627, 29541), (687, 26961), (817, 22671), (1419, 13053), (1881, 9847), (2061, 8987), (2451, 7557), (2519, 7353), (4257, 4351)]