21979432796

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{77392369}}^1$

素因数の和:77392444

約数の個数: 12

約数和(自身を含む): 39005754480

約数和(自身を除く): 17026321684

約数列:

[1, 2, 4, 71, 142, 284, 77392369, 154784738, 309569476, 5494858199, 10989716398, 21979432796]

約数ペア:

[(1, 21979432796), (2, 10989716398), (4, 5494858199), (71, 309569476), (142, 154784738), (284, 77392369)]