21519486

素因数分解:

$2^1\times 3^3\times {\mathrm{398509}}^1$

素因数の和:398520

約数の個数: 16

約数和(自身を含む): 47821200

約数和(自身を除く): 26301714

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 398509, 797018, 1195527, 2391054, 3586581, 7173162, 10759743, 21519486]

約数ペア:

[(1, 21519486), (2, 10759743), (3, 7173162), (6, 3586581), (9, 2391054), (18, 1195527), (27, 797018), (54, 398509)]