20797712

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{99989}}^1$

素因数の和:100010

約数の個数: 20

約数和(自身を含む): 43395660

約数和(自身を除く): 22597948

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 99989, 199978, 399956, 799912, 1299857, 1599824, 2599714, 5199428, 10398856, 20797712]

約数ペア:

[(1, 20797712), (2, 10398856), (4, 5199428), (8, 2599714), (13, 1599824), (16, 1299857), (26, 799912), (52, 399956), (104, 199978), (208, 99989)]