21760984

素因数分解:

$2^3\times 7^1\times {\mathrm{523}}^1\times {\mathrm{743}}^1$

素因数の和:1279

約数の個数: 32

約数和(自身を含む): 46782720

約数和(自身を除く): 25021736

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 523, 743, 1046, 1486, 2092, 2972, 3661, 4184, 5201, 5944, 7322, 10402, 14644, 20804, 29288, 41608, 388589, 777178, 1554356, 2720123, 3108712, 5440246, 10880492, 21760984]

約数ペア:

[(1, 21760984), (2, 10880492), (4, 5440246), (7, 3108712), (8, 2720123), (14, 1554356), (28, 777178), (56, 388589), (523, 41608), (743, 29288), (1046, 20804), (1486, 14644), (2092, 10402), (2972, 7322), (3661, 5944), (4184, 5201)]