20512786

素因数分解:

$2^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:358

約数の個数: 32

約数和(自身を含む): 36126720

約数和(自身を除く): 15613934

約数列:

[1, 2, 7, 14, 83, 127, 139, 166, 254, 278, 581, 889, 973, 1162, 1778, 1946, 10541, 11537, 17653, 21082, 23074, 35306, 73787, 80759, 123571, 147574, 161518, 247142, 1465199, 2930398, 10256393, 20512786]

約数ペア:

[(1, 20512786), (2, 10256393), (7, 2930398), (14, 1465199), (83, 247142), (127, 161518), (139, 147574), (166, 123571), (254, 80759), (278, 73787), (581, 35306), (889, 23074), (973, 21082), (1162, 17653), (1778, 11537), (1946, 10541)]