11989988

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1997}}^1$

素因数の和:2099

約数の個数: 24

約数和(自身を含む): 22377600

約数和(自身を除く): 10387612

約数列:

[1, 2, 4, 19, 38, 76, 79, 158, 316, 1501, 1997, 3002, 3994, 6004, 7988, 37943, 75886, 151772, 157763, 315526, 631052, 2997497, 5994994, 11989988]

約数ペア:

[(1, 11989988), (2, 5994994), (4, 2997497), (19, 631052), (38, 315526), (76, 157763), (79, 151772), (158, 75886), (316, 37943), (1501, 7988), (1997, 6004), (3002, 3994)]