21109194

素因数分解:

$2^1\times 3^3\times {\mathrm{331}}^1\times {\mathrm{1181}}^1$

素因数の和:1523

約数の個数: 32

約数和(自身を含む): 47090880

約数和(自身を除く): 25981686

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 331, 662, 993, 1181, 1986, 2362, 2979, 3543, 5958, 7086, 8937, 10629, 17874, 21258, 31887, 63774, 390911, 781822, 1172733, 2345466, 3518199, 7036398, 10554597, 21109194]

約数ペア:

[(1, 21109194), (2, 10554597), (3, 7036398), (6, 3518199), (9, 2345466), (18, 1172733), (27, 781822), (54, 390911), (331, 63774), (662, 31887), (993, 21258), (1181, 17874), (1986, 10629), (2362, 8937), (2979, 7086), (3543, 5958)]