19718886

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:357

約数の個数: 48

約数和(自身を含む): 43877232

約数和(自身を除く): 24158346

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 121, 157, 173, 242, 314, 346, 363, 471, 519, 726, 942, 1038, 1727, 1903, 3454, 3806, 5181, 5709, 10362, 11418, 18997, 20933, 27161, 37994, 41866, 54322, 56991, 62799, 81483, 113982, 125598, 162966, 298771, 597542, 896313, 1792626, 3286481, 6572962, 9859443, 19718886]

約数ペア:

[(1, 19718886), (2, 9859443), (3, 6572962), (6, 3286481), (11, 1792626), (22, 896313), (33, 597542), (66, 298771), (121, 162966), (157, 125598), (173, 113982), (242, 81483), (314, 62799), (346, 56991), (363, 54322), (471, 41866), (519, 37994), (726, 27161), (942, 20933), (1038, 18997), (1727, 11418), (1903, 10362), (3454, 5709), (3806, 5181)]