21888855

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{25601}}^1$

素因数の和:25631

約数の個数: 24

約数和(自身を含む): 39939120

約数和(自身を除く): 18050265

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 25601, 76803, 128005, 230409, 384015, 486419, 1152045, 1459257, 2432095, 4377771, 7296285, 21888855]

約数ペア:

[(1, 21888855), (3, 7296285), (5, 4377771), (9, 2432095), (15, 1459257), (19, 1152045), (45, 486419), (57, 384015), (95, 230409), (171, 128005), (285, 76803), (855, 25601)]