21287776

素因数分解:

$2^5\times {\mathrm{67}}^1\times {\mathrm{9929}}^1$

素因数の和:10006

約数の個数: 24

約数和(自身を含む): 42540120

約数和(自身を除く): 21252344

約数列:

[1, 2, 4, 8, 16, 32, 67, 134, 268, 536, 1072, 2144, 9929, 19858, 39716, 79432, 158864, 317728, 665243, 1330486, 2660972, 5321944, 10643888, 21287776]

約数ペア:

[(1, 21287776), (2, 10643888), (4, 5321944), (8, 2660972), (16, 1330486), (32, 665243), (67, 317728), (134, 158864), (268, 79432), (536, 39716), (1072, 19858), (2144, 9929)]