17821228

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{1997}}^1$

素因数の和:2121

約数の個数: 24

約数和(自身を含む): 32895072

約数和(自身を除く): 15073844

約数列:

[1, 2, 4, 23, 46, 92, 97, 194, 388, 1997, 2231, 3994, 4462, 7988, 8924, 45931, 91862, 183724, 193709, 387418, 774836, 4455307, 8910614, 17821228]

約数ペア:

[(1, 17821228), (2, 8910614), (4, 4455307), (23, 774836), (46, 387418), (92, 193709), (97, 183724), (194, 91862), (388, 45931), (1997, 8924), (2231, 7988), (3994, 4462)]