209212931

素因数分解:

${\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 239500800

約数和(自身を除く): 30287869

約数列:

[1, 17, 29, 43, 71, 139, 493, 731, 1207, 1247, 2059, 2363, 3053, 4031, 5977, 9869, 21199, 35003, 51901, 68527, 88537, 101609, 167773, 173333, 286201, 424367, 1505129, 2946661, 4865417, 7214239, 12306643, 209212931]

約数ペア:

[(1, 209212931), (17, 12306643), (29, 7214239), (43, 4865417), (71, 2946661), (139, 1505129), (493, 424367), (731, 286201), (1207, 173333), (1247, 167773), (2059, 101609), (2363, 88537), (3053, 68527), (4031, 51901), (5977, 35003), (9869, 21199)]