21547394

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{257}}^1$

素因数の和:410

約数の個数: 32

約数和(自身を含む): 36706176

約数和(自身を除く): 15158782

約数列:

[1, 2, 11, 22, 37, 74, 103, 206, 257, 407, 514, 814, 1133, 2266, 2827, 3811, 5654, 7622, 9509, 19018, 26471, 41921, 52942, 83842, 104599, 209198, 291181, 582362, 979427, 1958854, 10773697, 21547394]

約数ペア:

[(1, 21547394), (2, 10773697), (11, 1958854), (22, 979427), (37, 582362), (74, 291181), (103, 209198), (206, 104599), (257, 83842), (407, 52942), (514, 41921), (814, 26471), (1133, 19018), (2266, 9509), (2827, 7622), (3811, 5654)]