20946704

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18439}}^1$

素因数の和:18518

約数の個数: 20

約数和(自身を含む): 41158080

約数和(自身を除く): 20211376

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18439, 36878, 73756, 147512, 295024, 1309169, 2618338, 5236676, 10473352, 20946704]

約数ペア:

[(1, 20946704), (2, 10473352), (4, 5236676), (8, 2618338), (16, 1309169), (71, 295024), (142, 147512), (284, 73756), (568, 36878), (1136, 18439)]