21771373

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:181

約数の個数: 32

約数和(自身を含む): 26611200

約数和(自身を除く): 4839827

約数列:

[1, 13, 17, 29, 43, 79, 221, 377, 493, 559, 731, 1027, 1247, 1343, 2291, 3397, 6409, 9503, 16211, 17459, 21199, 29783, 38947, 44161, 57749, 98513, 275587, 506311, 750737, 1280669, 1674721, 21771373]

約数ペア:

[(1, 21771373), (13, 1674721), (17, 1280669), (29, 750737), (43, 506311), (79, 275587), (221, 98513), (377, 57749), (493, 44161), (559, 38947), (731, 29783), (1027, 21199), (1247, 17459), (1343, 16211), (2291, 9503), (3397, 6409)]