21759228

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{8513}}^1$

素因数の和:8594

約数の個数: 36

約数和(自身を含む): 55783728

約数和(自身を除く): 34024500

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 426, 639, 852, 1278, 2556, 8513, 17026, 25539, 34052, 51078, 76617, 102156, 153234, 306468, 604423, 1208846, 1813269, 2417692, 3626538, 5439807, 7253076, 10879614, 21759228]

約数ペア:

[(1, 21759228), (2, 10879614), (3, 7253076), (4, 5439807), (6, 3626538), (9, 2417692), (12, 1813269), (18, 1208846), (36, 604423), (71, 306468), (142, 153234), (213, 102156), (284, 76617), (426, 51078), (639, 34052), (852, 25539), (1278, 17026), (2556, 8513)]