21497865

素因数分解:

$3^1\times 5^1\times {\mathrm{827}}^1\times {\mathrm{1733}}^1$

素因数の和:2568

約数の個数: 16

約数和(自身を含む): 34458048

約数和(自身を除く): 12960183

約数列:

[1, 3, 5, 15, 827, 1733, 2481, 4135, 5199, 8665, 12405, 25995, 1433191, 4299573, 7165955, 21497865]

約数ペア:

[(1, 21497865), (3, 7165955), (5, 4299573), (15, 1433191), (827, 25995), (1733, 12405), (2481, 8665), (4135, 5199)]