20808515518

素因数分解:

$2^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{1318831}}^1$

素因数の和:1318877

約数の個数: 32

約数和(自身を含む): 37982361600

約数和(自身を除く): 17173846082

約数列:

[1, 2, 7, 14, 23, 46, 49, 98, 161, 322, 343, 686, 1127, 2254, 7889, 15778, 1318831, 2637662, 9231817, 18463634, 30333113, 60666226, 64622719, 129245438, 212331791, 424663582, 452359033, 904718066, 1486322537, 2972645074, 10404257759, 20808515518]

約数ペア:

[(1, 20808515518), (2, 10404257759), (7, 2972645074), (14, 1486322537), (23, 904718066), (46, 452359033), (49, 424663582), (98, 212331791), (161, 129245438), (322, 64622719), (343, 60666226), (686, 30333113), (1127, 18463634), (2254, 9231817), (7889, 2637662), (15778, 1318831)]