21000366268

素因数分解:

$2^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{3807173}}^1$

素因数の和:3807381

約数の個数: 24

約数和(自身を含む): 42213945312

約数和(自身を除く): 21213579044

約数列:

[1, 2, 4, 7, 14, 28, 197, 394, 788, 1379, 2758, 5516, 3807173, 7614346, 15228692, 26650211, 53300422, 106600844, 750013081, 1500026162, 3000052324, 5250091567, 10500183134, 21000366268]

約数ペア:

[(1, 21000366268), (2, 10500183134), (4, 5250091567), (7, 3000052324), (14, 1500026162), (28, 750013081), (197, 106600844), (394, 53300422), (788, 26650211), (1379, 15228692), (2758, 7614346), (5516, 3807173)]