2143309

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:145

約数の個数: 24

約数和(自身を含む): 2757888

約数和(自身を除く): 614579

約数列:

[1, 7, 17, 31, 49, 83, 119, 217, 527, 581, 833, 1411, 1519, 2573, 3689, 4067, 9877, 18011, 25823, 43741, 69139, 126077, 306187, 2143309]

約数ペア:

[(1, 2143309), (7, 306187), (17, 126077), (31, 69139), (49, 43741), (83, 25823), (119, 18011), (217, 9877), (527, 4067), (581, 3689), (833, 2573), (1411, 1519)]