21802144

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7487}}^1$

素因数の和:7517

約数の個数: 48

約数和(自身を含む): 52835328

約数和(自身を除く): 31033184

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 7487, 14974, 29948, 52409, 59896, 97331, 104818, 119792, 194662, 209636, 239584, 389324, 419272, 681317, 778648, 838544, 1362634, 1557296, 1677088, 2725268, 3114592, 5450536, 10901072, 21802144]

約数ペア:

[(1, 21802144), (2, 10901072), (4, 5450536), (7, 3114592), (8, 2725268), (13, 1677088), (14, 1557296), (16, 1362634), (26, 838544), (28, 778648), (32, 681317), (52, 419272), (56, 389324), (91, 239584), (104, 209636), (112, 194662), (182, 119792), (208, 104818), (224, 97331), (364, 59896), (416, 52409), (728, 29948), (1456, 14974), (2912, 7487)]