20178663477

素因数分解:

$3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1283}}^1\times {\mathrm{6871}}^1$

素因数の和:8273

約数の個数: 32

約数和(自身を含む): 31059240960

約数和(自身を除く): 10880577483

約数列:

[1, 3, 7, 21, 109, 327, 763, 1283, 2289, 3849, 6871, 8981, 20613, 26943, 48097, 139847, 144291, 419541, 748939, 978929, 2246817, 2936787, 5242573, 8815493, 15727719, 26446479, 61708451, 185125353, 960888737, 2882666211, 6726221159, 20178663477]

約数ペア:

[(1, 20178663477), (3, 6726221159), (7, 2882666211), (21, 960888737), (109, 185125353), (327, 61708451), (763, 26446479), (1283, 15727719), (2289, 8815493), (3849, 5242573), (6871, 2936787), (8981, 2246817), (20613, 978929), (26943, 748939), (48097, 419541), (139847, 144291)]