20489556

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{2137}}^1$

素因数の和:2208

約数の個数: 48

約数和(自身を含む): 51722496

約数和(自身を除く): 31232940

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 47, 51, 68, 94, 102, 141, 188, 204, 282, 564, 799, 1598, 2137, 2397, 3196, 4274, 4794, 6411, 8548, 9588, 12822, 25644, 36329, 72658, 100439, 108987, 145316, 200878, 217974, 301317, 401756, 435948, 602634, 1205268, 1707463, 3414926, 5122389, 6829852, 10244778, 20489556]

約数ペア:

[(1, 20489556), (2, 10244778), (3, 6829852), (4, 5122389), (6, 3414926), (12, 1707463), (17, 1205268), (34, 602634), (47, 435948), (51, 401756), (68, 301317), (94, 217974), (102, 200878), (141, 145316), (188, 108987), (204, 100439), (282, 72658), (564, 36329), (799, 25644), (1598, 12822), (2137, 9588), (2397, 8548), (3196, 6411), (4274, 4794)]