21482713

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 27869184

約数和(自身を除く): 6386471

約数列:

[1, 7, 17, 23, 47, 119, 161, 167, 329, 391, 799, 1081, 1169, 2737, 2839, 3841, 5593, 7567, 7849, 18377, 19873, 26887, 54943, 65297, 128639, 133433, 180527, 457079, 934031, 1263689, 3068959, 21482713]

約数ペア:

[(1, 21482713), (7, 3068959), (17, 1263689), (23, 934031), (47, 457079), (119, 180527), (161, 133433), (167, 128639), (329, 65297), (391, 54943), (799, 26887), (1081, 19873), (1169, 18377), (2737, 7849), (2839, 7567), (3841, 5593)]