19985416381

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{138079}}^1$

素因数の和:138169

約数の個数: 32

約数和(自身を含む): 25450905600

約数和(自身を除く): 5465489219

約数列:

[1, 7, 23, 29, 31, 161, 203, 217, 667, 713, 899, 4669, 4991, 6293, 20677, 138079, 144739, 966553, 3175817, 4004291, 4280449, 22230719, 28030037, 29963143, 92098693, 98450327, 124133021, 644690851, 689152289, 868931147, 2855059483, 19985416381]

約数ペア:

[(1, 19985416381), (7, 2855059483), (23, 868931147), (29, 689152289), (31, 644690851), (161, 124133021), (203, 98450327), (217, 92098693), (667, 29963143), (713, 28030037), (899, 22230719), (4669, 4280449), (4991, 4004291), (6293, 3175817), (20677, 966553), (138079, 144739)]