20989166

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{383}}^1$

素因数の和:496

約数の個数: 32

約数和(自身を含む): 35831808

約数和(自身を除く): 14842642

約数列:

[1, 2, 11, 22, 47, 53, 94, 106, 383, 517, 583, 766, 1034, 1166, 2491, 4213, 4982, 8426, 18001, 20299, 27401, 36002, 40598, 54802, 198011, 223289, 396022, 446578, 954053, 1908106, 10494583, 20989166]

約数ペア:

[(1, 20989166), (2, 10494583), (11, 1908106), (22, 954053), (47, 446578), (53, 396022), (94, 223289), (106, 198011), (383, 54802), (517, 40598), (583, 36002), (766, 27401), (1034, 20299), (1166, 18001), (2491, 8426), (4213, 4982)]