16854680

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1997}}^1$

素因数の和:2219

約数の個数: 32

約数和(自身を含む): 38121840

約数和(自身を除く): 21267160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 1997, 2110, 3994, 4220, 7988, 8440, 9985, 15976, 19970, 39940, 79880, 421367, 842734, 1685468, 2106835, 3370936, 4213670, 8427340, 16854680]

約数ペア:

[(1, 16854680), (2, 8427340), (4, 4213670), (5, 3370936), (8, 2106835), (10, 1685468), (20, 842734), (40, 421367), (211, 79880), (422, 39940), (844, 19970), (1055, 15976), (1688, 9985), (1997, 8440), (2110, 7988), (3994, 4220)]