21096999

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4349}}^1$

素因数の和:4380

約数の個数: 36

約数和(自身を含む): 38680200

約数和(自身を除く): 17583201

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 147, 231, 441, 539, 693, 1617, 4349, 4851, 13047, 30443, 39141, 47839, 91329, 143517, 213101, 273987, 334873, 430551, 639303, 1004619, 1917909, 2344111, 3013857, 7032333, 21096999]

約数ペア:

[(1, 21096999), (3, 7032333), (7, 3013857), (9, 2344111), (11, 1917909), (21, 1004619), (33, 639303), (49, 430551), (63, 334873), (77, 273987), (99, 213101), (147, 143517), (231, 91329), (441, 47839), (539, 39141), (693, 30443), (1617, 13047), (4349, 4851)]