20856814

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{877}}^1$

素因数の和:960

約数の個数: 32

約数和(自身を含む): 36412416

約数和(自身を除く): 15555602

約数列:

[1, 2, 11, 22, 23, 46, 47, 94, 253, 506, 517, 877, 1034, 1081, 1754, 2162, 9647, 11891, 19294, 20171, 23782, 40342, 41219, 82438, 221881, 443762, 453409, 906818, 948037, 1896074, 10428407, 20856814]

約数ペア:

[(1, 20856814), (2, 10428407), (11, 1896074), (22, 948037), (23, 906818), (46, 453409), (47, 443762), (94, 221881), (253, 82438), (506, 41219), (517, 40342), (877, 23782), (1034, 20171), (1081, 19294), (1754, 11891), (2162, 9647)]