21787604

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{283}}^1\times {\mathrm{1013}}^1$

素因数の和:1319

約数の個数: 24

約数和(自身を含む): 40316640

約数和(自身を除く): 18529036

約数列:

[1, 2, 4, 19, 38, 76, 283, 566, 1013, 1132, 2026, 4052, 5377, 10754, 19247, 21508, 38494, 76988, 286679, 573358, 1146716, 5446901, 10893802, 21787604]

約数ペア:

[(1, 21787604), (2, 10893802), (4, 5446901), (19, 1146716), (38, 573358), (76, 286679), (283, 76988), (566, 38494), (1013, 21508), (1132, 19247), (2026, 10754), (4052, 5377)]