19987948

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{1471}}^1$

素因数の和:1597

約数の個数: 24

約数和(自身を含む): 36270080

約数和(自身を除く): 16282132

約数列:

[1, 2, 4, 43, 79, 86, 158, 172, 316, 1471, 2942, 3397, 5884, 6794, 13588, 63253, 116209, 126506, 232418, 253012, 464836, 4996987, 9993974, 19987948]

約数ペア:

[(1, 19987948), (2, 9993974), (4, 4996987), (43, 464836), (79, 253012), (86, 232418), (158, 126506), (172, 116209), (316, 63253), (1471, 13588), (2942, 6794), (3397, 5884)]