20163949688

素因数分解:

$2^3\times {\mathrm{2557}}^1\times {\mathrm{985723}}^1$

素因数の和:988286

約数の個数: 16

約数和(自身を含む): 37822229880

約数和(自身を除く): 17658280192

約数列:

[1, 2, 4, 8, 2557, 5114, 10228, 20456, 985723, 1971446, 3942892, 7885784, 2520493711, 5040987422, 10081974844, 20163949688]

約数ペア:

[(1, 20163949688), (2, 10081974844), (4, 5040987422), (8, 2520493711), (2557, 7885784), (5114, 3942892), (10228, 1971446), (20456, 985723)]