20923705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{683}}^1$

素因数の和:1256

約数の個数: 16

約数和(自身を含む): 27480384

約数和(自身を除く): 6556679

約数列:

[1, 5, 11, 55, 557, 683, 2785, 3415, 6127, 7513, 30635, 37565, 380431, 1902155, 4184741, 20923705]

約数ペア:

[(1, 20923705), (5, 4184741), (11, 1902155), (55, 380431), (557, 37565), (683, 30635), (2785, 7513), (3415, 6127)]