21893361

素因数分解:

$3^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{2549}}^1$

素因数の和:2968

約数の個数: 16

約数和(自身を含む): 33456000

約数和(自身を除く): 11562639

約数列:

[1, 3, 7, 21, 409, 1227, 2549, 2863, 7647, 8589, 17843, 53529, 1042541, 3127623, 7297787, 21893361]

約数ペア:

[(1, 21893361), (3, 7297787), (7, 3127623), (21, 1042541), (409, 53529), (1227, 17843), (2549, 8589), (2863, 7647)]