21107415

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4903}}^1$

素因数の和:4959

約数の個数: 32

約数和(自身を含む): 39545856

約数和(自身を除く): 18438441

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 105, 123, 205, 287, 615, 861, 1435, 4305, 4903, 14709, 24515, 34321, 73545, 102963, 171605, 201023, 514815, 603069, 1005115, 1407161, 3015345, 4221483, 7035805, 21107415]

約数ペア:

[(1, 21107415), (3, 7035805), (5, 4221483), (7, 3015345), (15, 1407161), (21, 1005115), (35, 603069), (41, 514815), (105, 201023), (123, 171605), (205, 102963), (287, 73545), (615, 34321), (861, 24515), (1435, 14709), (4305, 4903)]