21347871279

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{127597}}^1$

素因数の和:127895

約数の個数: 32

約数和(自身を含む): 33710370816

約数和(自身を除く): 12362499537

約数列:

[1, 3, 7, 21, 31, 93, 217, 257, 651, 771, 1799, 5397, 7967, 23901, 55769, 127597, 167307, 382791, 893179, 2679537, 3955507, 11866521, 27688549, 32792429, 83065647, 98377287, 229547003, 688641009, 1016565299, 3049695897, 7115957093, 21347871279]

約数ペア:

[(1, 21347871279), (3, 7115957093), (7, 3049695897), (21, 1016565299), (31, 688641009), (93, 229547003), (217, 98377287), (257, 83065647), (651, 32792429), (771, 27688549), (1799, 11866521), (5397, 3955507), (7967, 2679537), (23901, 893179), (55769, 382791), (127597, 167307)]