21749648

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{17207}}^1$

素因数の和:17294

約数の個数: 20

約数和(自身を含む): 42675840

約数和(自身を除く): 20926192

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 17207, 34414, 68828, 137656, 275312, 1359353, 2718706, 5437412, 10874824, 21749648]

約数ペア:

[(1, 21749648), (2, 10874824), (4, 5437412), (8, 2718706), (16, 1359353), (79, 275312), (158, 137656), (316, 68828), (632, 34414), (1264, 17207)]