21764385

素因数分解:

$3^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{3203}}^1$

素因数の和:3365

約数の個数: 24

約数和(自身を含む): 37986624

約数和(自身を除く): 16222239

約数列:

[1, 3, 5, 9, 15, 45, 151, 453, 755, 1359, 2265, 3203, 6795, 9609, 16015, 28827, 48045, 144135, 483653, 1450959, 2418265, 4352877, 7254795, 21764385]

約数ペア:

[(1, 21764385), (3, 7254795), (5, 4352877), (9, 2418265), (15, 1450959), (45, 483653), (151, 144135), (453, 48045), (755, 28827), (1359, 16015), (2265, 9609), (3203, 6795)]