20897019

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{1249}}^1$

素因数の和:1292

約数の個数: 36

約数和(自身を含む): 35685000

約数和(自身を除く): 14787981

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 169, 429, 507, 1249, 1287, 1521, 1859, 3747, 5577, 11241, 13739, 16237, 16731, 41217, 48711, 123651, 146133, 178607, 211081, 535821, 633243, 1607463, 1899729, 2321891, 6965673, 20897019]

約数ペア:

[(1, 20897019), (3, 6965673), (9, 2321891), (11, 1899729), (13, 1607463), (33, 633243), (39, 535821), (99, 211081), (117, 178607), (143, 146133), (169, 123651), (429, 48711), (507, 41217), (1249, 16731), (1287, 16237), (1521, 13739), (1859, 11241), (3747, 5577)]