20798907818

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{577}}^1\times {\mathrm{991}}^1\times {\mathrm{1399}}^1$

素因数の和:2982

約数の個数: 32

約数和(自身を含む): 33714508800

約数和(自身を除く): 12915600982

約数列:

[1, 2, 13, 26, 577, 991, 1154, 1399, 1982, 2798, 7501, 12883, 15002, 18187, 25766, 36374, 571807, 807223, 1143614, 1386409, 1614446, 2772818, 7433491, 10493899, 14866982, 18023317, 20987798, 36046634, 799957993, 1599915986, 10399453909, 20798907818]

約数ペア:

[(1, 20798907818), (2, 10399453909), (13, 1599915986), (26, 799957993), (577, 36046634), (991, 20987798), (1154, 18023317), (1399, 14866982), (1982, 10493899), (2798, 7433491), (7501, 2772818), (12883, 1614446), (15002, 1386409), (18187, 1143614), (25766, 807223), (36374, 571807)]