21735747

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{1213}}^1$

素因数の和:1411

約数の個数: 24

約数和(自身を含む): 34467888

約数和(自身を除く): 12732141

約数列:

[1, 3, 9, 11, 33, 99, 181, 543, 1213, 1629, 1991, 3639, 5973, 10917, 13343, 17919, 40029, 120087, 219553, 658659, 1975977, 2415083, 7245249, 21735747]

約数ペア:

[(1, 21735747), (3, 7245249), (9, 2415083), (11, 1975977), (33, 658659), (99, 219553), (181, 120087), (543, 40029), (1213, 17919), (1629, 13343), (1991, 10917), (3639, 5973)]