21690999

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{1451}}^1$

素因数の和:1619

約数の個数: 24

約数和(自身を含む): 34429824

約数和(自身を除く): 12738825

約数列:

[1, 3, 9, 11, 33, 99, 151, 453, 1359, 1451, 1661, 4353, 4983, 13059, 14949, 15961, 47883, 143649, 219101, 657303, 1971909, 2410111, 7230333, 21690999]

約数ペア:

[(1, 21690999), (3, 7230333), (9, 2410111), (11, 1971909), (33, 657303), (99, 219101), (151, 143649), (453, 47883), (1359, 15961), (1451, 14949), (1661, 13059), (4353, 4983)]