21179564

素因数分解:

$2^2\times 7^3\times {\mathrm{43}}^1\times {\mathrm{359}}^1$

素因数の和:427

約数の個数: 48

約数和(自身を含む): 44352000

約数和(自身を除く): 23172436

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 301, 343, 359, 602, 686, 718, 1204, 1372, 1436, 2107, 2513, 4214, 5026, 8428, 10052, 14749, 15437, 17591, 29498, 30874, 35182, 58996, 61748, 70364, 108059, 123137, 216118, 246274, 432236, 492548, 756413, 1512826, 3025652, 5294891, 10589782, 21179564]

約数ペア:

[(1, 21179564), (2, 10589782), (4, 5294891), (7, 3025652), (14, 1512826), (28, 756413), (43, 492548), (49, 432236), (86, 246274), (98, 216118), (172, 123137), (196, 108059), (301, 70364), (343, 61748), (359, 58996), (602, 35182), (686, 30874), (718, 29498), (1204, 17591), (1372, 15437), (1436, 14749), (2107, 10052), (2513, 8428), (4214, 5026)]