21277792

素因数分解:

$2^5\times {\mathrm{659}}^1\times {\mathrm{1009}}^1$

素因数の和:1678

約数の個数: 24

約数和(自身を含む): 41995800

約数和(自身を除く): 20718008

約数列:

[1, 2, 4, 8, 16, 32, 659, 1009, 1318, 2018, 2636, 4036, 5272, 8072, 10544, 16144, 21088, 32288, 664931, 1329862, 2659724, 5319448, 10638896, 21277792]

約数ペア:

[(1, 21277792), (2, 10638896), (4, 5319448), (8, 2659724), (16, 1329862), (32, 664931), (659, 32288), (1009, 21088), (1318, 16144), (2018, 10544), (2636, 8072), (4036, 5272)]