21000884792

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{342659}}^1$

素因数の和:342875

約数の個数: 32

約数和(自身を含む): 40461292800

約数和(自身を除く): 19460408008

約数列:

[1, 2, 4, 8, 47, 94, 163, 188, 326, 376, 652, 1304, 7661, 15322, 30644, 61288, 342659, 685318, 1370636, 2741272, 16104973, 32209946, 55853417, 64419892, 111706834, 128839784, 223413668, 446827336, 2625110599, 5250221198, 10500442396, 21000884792]

約数ペア:

[(1, 21000884792), (2, 10500442396), (4, 5250221198), (8, 2625110599), (47, 446827336), (94, 223413668), (163, 128839784), (188, 111706834), (326, 64419892), (376, 55853417), (652, 32209946), (1304, 16104973), (7661, 2741272), (15322, 1370636), (30644, 685318), (61288, 342659)]