20641608

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{7351}}^1$

素因数の和:7379

約数の個数: 64

約数和(自身を含む): 61756800

約数和(自身を除く): 41115192

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 104, 108, 117, 156, 216, 234, 312, 351, 468, 702, 936, 1404, 2808, 7351, 14702, 22053, 29404, 44106, 58808, 66159, 88212, 95563, 132318, 176424, 191126, 198477, 264636, 286689, 382252, 396954, 529272, 573378, 764504, 793908, 860067, 1146756, 1587816, 1720134, 2293512, 2580201, 3440268, 5160402, 6880536, 10320804, 20641608]

約数ペア:

[(1, 20641608), (2, 10320804), (3, 6880536), (4, 5160402), (6, 3440268), (8, 2580201), (9, 2293512), (12, 1720134), (13, 1587816), (18, 1146756), (24, 860067), (26, 793908), (27, 764504), (36, 573378), (39, 529272), (52, 396954), (54, 382252), (72, 286689), (78, 264636), (104, 198477), (108, 191126), (117, 176424), (156, 132318), (216, 95563), (234, 88212), (312, 66159), (351, 58808), (468, 44106), (702, 29404), (936, 22053), (1404, 14702), (2808, 7351)]