13908993

素因数分解:

$3^1\times 7^4\times {\mathrm{1931}}^1$

素因数の和:1962

約数の個数: 20

約数和(自身を含む): 21646128

約数和(自身を除く): 7737135

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 1931, 2401, 5793, 7203, 13517, 40551, 94619, 283857, 662333, 1986999, 4636331, 13908993]

約数ペア:

[(1, 13908993), (3, 4636331), (7, 1986999), (21, 662333), (49, 283857), (147, 94619), (343, 40551), (1029, 13517), (1931, 7203), (2401, 5793)]