21717388

素因数分解:

$2^2\times 7^3\times {\mathrm{11}}^1\times {\mathrm{1439}}^1$

素因数の和:1475

約数の個数: 48

約数和(自身を含む): 48384000

約数和(自身を除く): 26666612

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 98, 154, 196, 308, 343, 539, 686, 1078, 1372, 1439, 2156, 2878, 3773, 5756, 7546, 10073, 15092, 15829, 20146, 31658, 40292, 63316, 70511, 110803, 141022, 221606, 282044, 443212, 493577, 775621, 987154, 1551242, 1974308, 3102484, 5429347, 10858694, 21717388]

約数ペア:

[(1, 21717388), (2, 10858694), (4, 5429347), (7, 3102484), (11, 1974308), (14, 1551242), (22, 987154), (28, 775621), (44, 493577), (49, 443212), (77, 282044), (98, 221606), (154, 141022), (196, 110803), (308, 70511), (343, 63316), (539, 40292), (686, 31658), (1078, 20146), (1372, 15829), (1439, 15092), (2156, 10073), (2878, 7546), (3773, 5756)]