16921215

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{16349}}^1$

素因数の和:16383

約数の個数: 24

約数和(自身を含む): 30607200

約数和(自身を除く): 13685985

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 16349, 49047, 81745, 147141, 245235, 376027, 735705, 1128081, 1880135, 3384243, 5640405, 16921215]

約数ペア:

[(1, 16921215), (3, 5640405), (5, 3384243), (9, 1880135), (15, 1128081), (23, 735705), (45, 376027), (69, 245235), (115, 147141), (207, 81745), (345, 49047), (1035, 16349)]