20279996

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{12457}}^1$

素因数の和:12509

約数の個数: 24

約数和(自身を含む): 39765936

約数和(自身を除く): 19485940

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 12457, 24914, 49828, 137027, 274054, 460909, 548108, 921818, 1843636, 5069999, 10139998, 20279996]

約数ペア:

[(1, 20279996), (2, 10139998), (4, 5069999), (11, 1843636), (22, 921818), (37, 548108), (44, 460909), (74, 274054), (148, 137027), (407, 49828), (814, 24914), (1628, 12457)]