128213813

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1237}}^1$

素因数の和:1341

約数の個数: 32

約数和(自身を含む): 169714944

約数和(自身を除く): 41501131

約数列:

[1, 7, 13, 17, 67, 91, 119, 221, 469, 871, 1139, 1237, 1547, 6097, 7973, 8659, 14807, 16081, 21029, 82879, 103649, 112567, 147203, 273377, 580153, 1077427, 1408943, 1913639, 7541989, 9862601, 18316259, 128213813]

約数ペア:

[(1, 128213813), (7, 18316259), (13, 9862601), (17, 7541989), (67, 1913639), (91, 1408943), (119, 1077427), (221, 580153), (469, 273377), (871, 147203), (1139, 112567), (1237, 103649), (1547, 82879), (6097, 21029), (7973, 16081), (8659, 14807)]