881991

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1$

素因数の和:227

約数の個数: 24

約数和(自身を含む): 1422720

約数和(自身を除く): 540729

約数列:

[1, 3, 9, 11, 33, 59, 99, 151, 177, 453, 531, 649, 1359, 1661, 1947, 4983, 5841, 8909, 14949, 26727, 80181, 97999, 293997, 881991]

約数ペア:

[(1, 881991), (3, 293997), (9, 97999), (11, 80181), (33, 26727), (59, 14949), (99, 8909), (151, 5841), (177, 4983), (453, 1947), (531, 1661), (649, 1359)]