1089900021

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2731579}}^1$

素因数の和:2731608

約数の個数: 16

約数和(自身を含む): 1748211200

約数和(自身を除く): 658311179

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 2731579, 8194737, 19121053, 51900001, 57363159, 155700003, 363300007, 1089900021]

約数ペア:

[(1, 1089900021), (3, 363300007), (7, 155700003), (19, 57363159), (21, 51900001), (57, 19121053), (133, 8194737), (399, 2731579)]