21918249

素因数分解:

$3^3\times {\mathrm{167}}^1\times {\mathrm{4861}}^1$

素因数の和:5037

約数の個数: 16

約数和(自身を含む): 32672640

約数和(自身を除く): 10754391

約数列:

[1, 3, 9, 27, 167, 501, 1503, 4509, 4861, 14583, 43749, 131247, 811787, 2435361, 7306083, 21918249]

約数ペア:

[(1, 21918249), (3, 7306083), (9, 2435361), (27, 811787), (167, 131247), (501, 43749), (1503, 14583), (4509, 4861)]