20514529

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:205

約数の個数: 32

約数和(自身を含む): 26320896

約数和(自身を除く): 5806367

約数列:

[1, 7, 17, 31, 67, 83, 119, 217, 469, 527, 581, 1139, 1411, 2077, 2573, 3689, 5561, 7973, 9877, 14539, 18011, 35309, 38927, 43741, 94537, 172391, 247163, 306187, 661759, 1206737, 2930647, 20514529]

約数ペア:

[(1, 20514529), (7, 2930647), (17, 1206737), (31, 661759), (67, 306187), (83, 247163), (119, 172391), (217, 94537), (469, 43741), (527, 38927), (581, 35309), (1139, 18011), (1411, 14539), (2077, 9877), (2573, 7973), (3689, 5561)]