20105748

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{42961}}^1$

素因数の和:42984

約数の個数: 36

約数和(自身を含む): 54733588

約数和(自身を除く): 34627840

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 42961, 85922, 128883, 171844, 257766, 386649, 515532, 558493, 773298, 1116986, 1546596, 1675479, 2233972, 3350958, 5026437, 6701916, 10052874, 20105748]

約数ペア:

[(1, 20105748), (2, 10052874), (3, 6701916), (4, 5026437), (6, 3350958), (9, 2233972), (12, 1675479), (13, 1546596), (18, 1116986), (26, 773298), (36, 558493), (39, 515532), (52, 386649), (78, 257766), (117, 171844), (156, 128883), (234, 85922), (468, 42961)]