21916539

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{443}}^1$

素因数の和:711

約数の個数: 24

約数和(自身を含む): 33246720

約数和(自身を除く): 11330181

約数列:

[1, 3, 9, 23, 69, 207, 239, 443, 717, 1329, 2151, 3987, 5497, 10189, 16491, 30567, 49473, 91701, 105877, 317631, 952893, 2435171, 7305513, 21916539]

約数ペア:

[(1, 21916539), (3, 7305513), (9, 2435171), (23, 952893), (69, 317631), (207, 105877), (239, 91701), (443, 49473), (717, 30567), (1329, 16491), (2151, 10189), (3987, 5497)]