16491951

素因数分解:

$3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1229}}^1$

素因数の和:1316

約数の個数: 32

約数和(自身を含む): 28339200

約数和(自身を除く): 11847249

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 189, 213, 497, 639, 1229, 1491, 1917, 3687, 4473, 8603, 11061, 13419, 25809, 33183, 77427, 87259, 232281, 261777, 610813, 785331, 1832439, 2355993, 5497317, 16491951]

約数ペア:

[(1, 16491951), (3, 5497317), (7, 2355993), (9, 1832439), (21, 785331), (27, 610813), (63, 261777), (71, 232281), (189, 87259), (213, 77427), (497, 33183), (639, 25809), (1229, 13419), (1491, 11061), (1917, 8603), (3687, 4473)]