21755010

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{769}}^1$

素因数の和:843

約数の個数: 64

約数和(自身を含む): 55883520

約数和(自身を除く): 34128510

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 41, 46, 69, 82, 115, 123, 138, 205, 230, 246, 345, 410, 615, 690, 769, 943, 1230, 1538, 1886, 2307, 2829, 3845, 4614, 4715, 5658, 7690, 9430, 11535, 14145, 17687, 23070, 28290, 31529, 35374, 53061, 63058, 88435, 94587, 106122, 157645, 176870, 189174, 265305, 315290, 472935, 530610, 725167, 945870, 1450334, 2175501, 3625835, 4351002, 7251670, 10877505, 21755010]

約数ペア:

[(1, 21755010), (2, 10877505), (3, 7251670), (5, 4351002), (6, 3625835), (10, 2175501), (15, 1450334), (23, 945870), (30, 725167), (41, 530610), (46, 472935), (69, 315290), (82, 265305), (115, 189174), (123, 176870), (138, 157645), (205, 106122), (230, 94587), (246, 88435), (345, 63058), (410, 53061), (615, 35374), (690, 31529), (769, 28290), (943, 23070), (1230, 17687), (1538, 14145), (1886, 11535), (2307, 9430), (2829, 7690), (3845, 5658), (4614, 4715)]