21980997

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{22003}}^1$

素因数の和:22049

約数の個数: 16

約数和(自身を含む): 33446080

約数和(自身を除く): 11465083

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 22003, 66009, 198027, 594081, 814111, 2442333, 7326999, 21980997]

約数ペア:

[(1, 21980997), (3, 7326999), (9, 2442333), (27, 814111), (37, 594081), (111, 198027), (333, 66009), (999, 22003)]