21174153

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{641}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 38252928

約数和(自身を除く): 17078775

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 121, 143, 231, 273, 363, 429, 641, 847, 1001, 1573, 1923, 2541, 3003, 4487, 4719, 7051, 8333, 11011, 13461, 21153, 24999, 33033, 49357, 58331, 77561, 91663, 148071, 174993, 232683, 274989, 542927, 641641, 1008293, 1628781, 1924923, 3024879, 7058051, 21174153]

約数ペア:

[(1, 21174153), (3, 7058051), (7, 3024879), (11, 1924923), (13, 1628781), (21, 1008293), (33, 641641), (39, 542927), (77, 274989), (91, 232683), (121, 174993), (143, 148071), (231, 91663), (273, 77561), (363, 58331), (429, 49357), (641, 33033), (847, 24999), (1001, 21153), (1573, 13461), (1923, 11011), (2541, 8333), (3003, 7051), (4487, 4719)]