20522216

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17939}}^1$

素因数の和:17969

約数の個数: 32

約数和(自身を含む): 45208800

約数和(自身を除く): 24686584

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 17939, 35878, 71756, 143512, 197329, 233207, 394658, 466414, 789316, 932828, 1578632, 1865656, 2565277, 5130554, 10261108, 20522216]

約数ペア:

[(1, 20522216), (2, 10261108), (4, 5130554), (8, 2565277), (11, 1865656), (13, 1578632), (22, 932828), (26, 789316), (44, 466414), (52, 394658), (88, 233207), (104, 197329), (143, 143512), (286, 71756), (572, 35878), (1144, 17939)]