219219568

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{721117}}^1$

素因数の和:721144

約数の個数: 20

約数和(自身を含む): 447093160

約数和(自身を除く): 227873592

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 721117, 1442234, 2884468, 5768936, 11537872, 13701223, 27402446, 54804892, 109609784, 219219568]

約数ペア:

[(1, 219219568), (2, 109609784), (4, 54804892), (8, 27402446), (16, 13701223), (19, 11537872), (38, 5768936), (76, 2884468), (152, 1442234), (304, 721117)]