21070294580

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1\times {\mathrm{97883}}^1$

素因数の和:98168

約数の個数: 48

約数和(自身を含む): 45386853120

約数和(自身を除く): 24316558540

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 229, 235, 458, 470, 916, 940, 1145, 2290, 4580, 10763, 21526, 43052, 53815, 97883, 107630, 195766, 215260, 391532, 489415, 978830, 1957660, 4600501, 9201002, 18402004, 22415207, 23002505, 44830414, 46005010, 89660828, 92010020, 112076035, 224152070, 448304140, 1053514729, 2107029458, 4214058916, 5267573645, 10535147290, 21070294580]

約数ペア:

[(1, 21070294580), (2, 10535147290), (4, 5267573645), (5, 4214058916), (10, 2107029458), (20, 1053514729), (47, 448304140), (94, 224152070), (188, 112076035), (229, 92010020), (235, 89660828), (458, 46005010), (470, 44830414), (916, 23002505), (940, 22415207), (1145, 18402004), (2290, 9201002), (4580, 4600501), (10763, 1957660), (21526, 978830), (43052, 489415), (53815, 391532), (97883, 215260), (107630, 195766)]