21084945

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{28687}}^1$

素因数の和:28709

約数の個数: 24

約数和(自身を含む): 39245184

約数和(自身を除く): 18160239

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 28687, 86061, 143435, 200809, 430305, 602427, 1004045, 1405663, 3012135, 4216989, 7028315, 21084945]

約数ペア:

[(1, 21084945), (3, 7028315), (5, 4216989), (7, 3012135), (15, 1405663), (21, 1004045), (35, 602427), (49, 430305), (105, 200809), (147, 143435), (245, 86061), (735, 28687)]