21465858

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 48153600

約数和(自身を除く): 26687742

約数列:

[1, 2, 3, 6, 19, 29, 38, 43, 57, 58, 86, 87, 114, 129, 151, 174, 258, 302, 453, 551, 817, 906, 1102, 1247, 1634, 1653, 2451, 2494, 2869, 3306, 3741, 4379, 4902, 5738, 6493, 7482, 8607, 8758, 12986, 13137, 17214, 19479, 23693, 26274, 38958, 47386, 71079, 83201, 123367, 142158, 166402, 188297, 246734, 249603, 370101, 376594, 499206, 564891, 740202, 1129782, 3577643, 7155286, 10732929, 21465858]

約数ペア:

[(1, 21465858), (2, 10732929), (3, 7155286), (6, 3577643), (19, 1129782), (29, 740202), (38, 564891), (43, 499206), (57, 376594), (58, 370101), (86, 249603), (87, 246734), (114, 188297), (129, 166402), (151, 142158), (174, 123367), (258, 83201), (302, 71079), (453, 47386), (551, 38958), (817, 26274), (906, 23693), (1102, 19479), (1247, 17214), (1634, 13137), (1653, 12986), (2451, 8758), (2494, 8607), (2869, 7482), (3306, 6493), (3741, 5738), (4379, 4902)]