2697219

素因数分解:

$3^4\times 7^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:157

約数の個数: 40

約数和(自身を含む): 4739328

約数和(自身を除く): 2042109

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 71, 81, 189, 201, 213, 469, 497, 567, 603, 639, 1407, 1491, 1809, 1917, 4221, 4473, 4757, 5427, 5751, 12663, 13419, 14271, 33299, 37989, 40257, 42813, 99897, 128439, 299691, 385317, 899073, 2697219]

約数ペア:

[(1, 2697219), (3, 899073), (7, 385317), (9, 299691), (21, 128439), (27, 99897), (63, 42813), (67, 40257), (71, 37989), (81, 33299), (189, 14271), (201, 13419), (213, 12663), (469, 5751), (497, 5427), (567, 4757), (603, 4473), (639, 4221), (1407, 1917), (1491, 1809)]