21264579

素因数分解:

$3^3\times 7^2\times {\mathrm{16073}}^1$

素因数の和:16096

約数の個数: 24

約数和(自身を含む): 36648720

約数和(自身を除く): 15384141

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 16073, 48219, 112511, 144657, 337533, 433971, 787577, 1012599, 2362731, 3037797, 7088193, 21264579]

約数ペア:

[(1, 21264579), (3, 7088193), (7, 3037797), (9, 2362731), (21, 1012599), (27, 787577), (49, 433971), (63, 337533), (147, 144657), (189, 112511), (441, 48219), (1323, 16073)]