21087374504

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{324901}}^1$

素因数の和:324994

約数の個数: 64

約数和(自身を含む): 48345417600

約数和(自身を除く): 27258043096

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 61, 76, 122, 133, 152, 244, 266, 427, 488, 532, 854, 1064, 1159, 1708, 2318, 3416, 4636, 8113, 9272, 16226, 32452, 64904, 324901, 649802, 1299604, 2274307, 2599208, 4548614, 6173119, 9097228, 12346238, 18194456, 19818961, 24692476, 39637922, 43211833, 49384952, 79275844, 86423666, 138732727, 158551688, 172847332, 277465454, 345694664, 376560259, 554930908, 753120518, 1109861816, 1506241036, 2635921813, 3012482072, 5271843626, 10543687252, 21087374504]

約数ペア:

[(1, 21087374504), (2, 10543687252), (4, 5271843626), (7, 3012482072), (8, 2635921813), (14, 1506241036), (19, 1109861816), (28, 753120518), (38, 554930908), (56, 376560259), (61, 345694664), (76, 277465454), (122, 172847332), (133, 158551688), (152, 138732727), (244, 86423666), (266, 79275844), (427, 49384952), (488, 43211833), (532, 39637922), (854, 24692476), (1064, 19818961), (1159, 18194456), (1708, 12346238), (2318, 9097228), (3416, 6173119), (4636, 4548614), (8113, 2599208), (9272, 2274307), (16226, 1299604), (32452, 649802), (64904, 324901)]