21591836

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{45361}}^1$

素因数の和:45389

約数の個数: 24

約数和(自身を含む): 45724896

約数和(自身を除く): 24133060

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 476, 45361, 90722, 181444, 317527, 635054, 771137, 1270108, 1542274, 3084548, 5397959, 10795918, 21591836]

約数ペア:

[(1, 21591836), (2, 10795918), (4, 5397959), (7, 3084548), (14, 1542274), (17, 1270108), (28, 771137), (34, 635054), (68, 317527), (119, 181444), (238, 90722), (476, 45361)]