21242936

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{599}}^1$

素因数の和:660

約数の個数: 64

約数和(自身を含む): 48384000

約数和(自身を除く): 27141064

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 31, 44, 52, 62, 88, 104, 124, 143, 248, 286, 341, 403, 572, 599, 682, 806, 1144, 1198, 1364, 1612, 2396, 2728, 3224, 4433, 4792, 6589, 7787, 8866, 13178, 15574, 17732, 18569, 26356, 31148, 35464, 37138, 52712, 62296, 74276, 85657, 148552, 171314, 204259, 241397, 342628, 408518, 482794, 685256, 817036, 965588, 1634072, 1931176, 2655367, 5310734, 10621468, 21242936]

約数ペア:

[(1, 21242936), (2, 10621468), (4, 5310734), (8, 2655367), (11, 1931176), (13, 1634072), (22, 965588), (26, 817036), (31, 685256), (44, 482794), (52, 408518), (62, 342628), (88, 241397), (104, 204259), (124, 171314), (143, 148552), (248, 85657), (286, 74276), (341, 62296), (403, 52712), (572, 37138), (599, 35464), (682, 31148), (806, 26356), (1144, 18569), (1198, 17732), (1364, 15574), (1612, 13178), (2396, 8866), (2728, 7787), (3224, 6589), (4433, 4792)]