17921763

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{9907}}^1$

素因数の和:9983

約数の個数: 16

約数和(自身を含む): 26949760

約数和(自身を除く): 9027997

約数列:

[1, 3, 9, 27, 67, 201, 603, 1809, 9907, 29721, 89163, 267489, 663769, 1991307, 5973921, 17921763]

約数ペア:

[(1, 17921763), (3, 5973921), (9, 1991307), (27, 663769), (67, 267489), (201, 89163), (603, 29721), (1809, 9907)]