20551995

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{6619}}^1$

素因数の和:6656

約数の個数: 32

約数和(自身を含む): 38131200

約数和(自身を除く): 17579205

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 621, 1035, 3105, 6619, 19857, 33095, 59571, 99285, 152237, 178713, 297855, 456711, 761185, 893565, 1370133, 2283555, 4110399, 6850665, 20551995]

約数ペア:

[(1, 20551995), (3, 6850665), (5, 4110399), (9, 2283555), (15, 1370133), (23, 893565), (27, 761185), (45, 456711), (69, 297855), (115, 178713), (135, 152237), (207, 99285), (345, 59571), (621, 33095), (1035, 19857), (3105, 6619)]