21983985

素因数分解:

$3^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{1069}}^1$

素因数の和:1537

約数の個数: 24

約数和(自身を含む): 38224680

約数和(自身を除く): 16240695

約数列:

[1, 3, 5, 9, 15, 45, 457, 1069, 1371, 2285, 3207, 4113, 5345, 6855, 9621, 16035, 20565, 48105, 488533, 1465599, 2442665, 4396797, 7327995, 21983985]

約数ペア:

[(1, 21983985), (3, 7327995), (5, 4396797), (9, 2442665), (15, 1465599), (45, 488533), (457, 48105), (1069, 20565), (1371, 16035), (2285, 9621), (3207, 6855), (4113, 5345)]