21765040

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{24733}}^1$

素因数の和:24757

約数の個数: 40

約数和(自身を含む): 55206288

約数和(自身を除く): 33441248

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 24733, 49466, 98932, 123665, 197864, 247330, 272063, 395728, 494660, 544126, 989320, 1088252, 1360315, 1978640, 2176504, 2720630, 4353008, 5441260, 10882520, 21765040]

約数ペア:

[(1, 21765040), (2, 10882520), (4, 5441260), (5, 4353008), (8, 2720630), (10, 2176504), (11, 1978640), (16, 1360315), (20, 1088252), (22, 989320), (40, 544126), (44, 494660), (55, 395728), (80, 272063), (88, 247330), (110, 197864), (176, 123665), (220, 98932), (440, 49466), (880, 24733)]