21789444

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^2\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:205

約数の個数: 72

約数和(自身を含む): 55427008

約数和(自身を除く): 33637564

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 61, 68, 102, 103, 122, 183, 204, 206, 244, 289, 309, 366, 412, 578, 618, 732, 867, 1037, 1156, 1236, 1734, 1751, 2074, 3111, 3468, 3502, 4148, 5253, 6222, 6283, 7004, 10506, 12444, 12566, 17629, 18849, 21012, 25132, 29767, 35258, 37698, 52887, 59534, 70516, 75396, 89301, 105774, 106811, 119068, 178602, 211548, 213622, 320433, 357204, 427244, 640866, 1281732, 1815787, 3631574, 5447361, 7263148, 10894722, 21789444]

約数ペア:

[(1, 21789444), (2, 10894722), (3, 7263148), (4, 5447361), (6, 3631574), (12, 1815787), (17, 1281732), (34, 640866), (51, 427244), (61, 357204), (68, 320433), (102, 213622), (103, 211548), (122, 178602), (183, 119068), (204, 106811), (206, 105774), (244, 89301), (289, 75396), (309, 70516), (366, 59534), (412, 52887), (578, 37698), (618, 35258), (732, 29767), (867, 25132), (1037, 21012), (1156, 18849), (1236, 17629), (1734, 12566), (1751, 12444), (2074, 10506), (3111, 7004), (3468, 6283), (3502, 6222), (4148, 5253)]