28019772

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{409}}^1$

素因数の和:603

約数の個数: 72

約数和(自身を含む): 77903280

約数和(自身を除く): 49883508

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 173, 198, 346, 396, 409, 519, 692, 818, 1038, 1227, 1557, 1636, 1903, 2076, 2454, 3114, 3681, 3806, 4499, 4908, 5709, 6228, 7362, 7612, 8998, 11418, 13497, 14724, 17127, 17996, 22836, 26994, 34254, 40491, 53988, 68508, 70757, 80982, 141514, 161964, 212271, 283028, 424542, 636813, 778327, 849084, 1273626, 1556654, 2334981, 2547252, 3113308, 4669962, 7004943, 9339924, 14009886, 28019772]

約数ペア:

[(1, 28019772), (2, 14009886), (3, 9339924), (4, 7004943), (6, 4669962), (9, 3113308), (11, 2547252), (12, 2334981), (18, 1556654), (22, 1273626), (33, 849084), (36, 778327), (44, 636813), (66, 424542), (99, 283028), (132, 212271), (173, 161964), (198, 141514), (346, 80982), (396, 70757), (409, 68508), (519, 53988), (692, 40491), (818, 34254), (1038, 26994), (1227, 22836), (1557, 17996), (1636, 17127), (1903, 14724), (2076, 13497), (2454, 11418), (3114, 8998), (3681, 7612), (3806, 7362), (4499, 6228), (4908, 5709)]