21055491

素因数分解:

$3^3\times {\mathrm{433}}^1\times {\mathrm{1801}}^1$

素因数の和:2243

約数の個数: 16

約数和(自身を含む): 31282720

約数和(自身を除く): 10227229

約数列:

[1, 3, 9, 27, 433, 1299, 1801, 3897, 5403, 11691, 16209, 48627, 779833, 2339499, 7018497, 21055491]

約数ペア:

[(1, 21055491), (3, 7018497), (9, 2339499), (27, 779833), (433, 48627), (1299, 16209), (1801, 11691), (3897, 5403)]