20970045

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16069}}^1$

素因数の和:16109

約数の個数: 24

約数和(自身を含む): 37603800

約数和(自身を除く): 16633755

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 16069, 48207, 80345, 144621, 241035, 466001, 723105, 1398003, 2330005, 4194009, 6990015, 20970045]

約数ペア:

[(1, 20970045), (3, 6990015), (5, 4194009), (9, 2330005), (15, 1398003), (29, 723105), (45, 466001), (87, 241035), (145, 144621), (261, 80345), (435, 48207), (1305, 16069)]