20161812308

素因数分解:

$2^2\times {\mathrm{11}}^3\times {\mathrm{43}}^1\times {\mathrm{88069}}^1$

素因数の和:88149

約数の個数: 48

約数和(自身を含む): 39711819840

約数和(自身を除く): 19550007532

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 121, 172, 242, 473, 484, 946, 1331, 1892, 2662, 5203, 5324, 10406, 20812, 57233, 88069, 114466, 176138, 228932, 352276, 968759, 1937518, 3786967, 3875036, 7573934, 10656349, 15147868, 21312698, 41656637, 42625396, 83313274, 117219839, 166626548, 234439678, 458223007, 468879356, 916446014, 1832892028, 5040453077, 10080906154, 20161812308]

約数ペア:

[(1, 20161812308), (2, 10080906154), (4, 5040453077), (11, 1832892028), (22, 916446014), (43, 468879356), (44, 458223007), (86, 234439678), (121, 166626548), (172, 117219839), (242, 83313274), (473, 42625396), (484, 41656637), (946, 21312698), (1331, 15147868), (1892, 10656349), (2662, 7573934), (5203, 3875036), (5324, 3786967), (10406, 1937518), (20812, 968759), (57233, 352276), (88069, 228932), (114466, 176138)]