209212857

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{9199}}^1$

素因数の和:9250

約数の個数: 36

約数和(自身を含む): 364540800

約数和(自身を除く): 155327943

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 361, 399, 1083, 1197, 2527, 3249, 7581, 9199, 22743, 27597, 64393, 82791, 174781, 193179, 524343, 579537, 1223467, 1573029, 3320839, 3670401, 9962517, 11011203, 23245873, 29887551, 69737619, 209212857]

約数ペア:

[(1, 209212857), (3, 69737619), (7, 29887551), (9, 23245873), (19, 11011203), (21, 9962517), (57, 3670401), (63, 3320839), (133, 1573029), (171, 1223467), (361, 579537), (399, 524343), (1083, 193179), (1197, 174781), (2527, 82791), (3249, 64393), (7581, 27597), (9199, 22743)]