21445305

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{1223}}^1$

素因数の和:1405

約数の個数: 32

約数和(自身を含む): 39481344

約数和(自身を除く): 18036039

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 167, 501, 835, 1169, 1223, 2505, 3507, 3669, 5845, 6115, 8561, 17535, 18345, 25683, 42805, 128415, 204241, 612723, 1021205, 1429687, 3063615, 4289061, 7148435, 21445305]

約数ペア:

[(1, 21445305), (3, 7148435), (5, 4289061), (7, 3063615), (15, 1429687), (21, 1021205), (35, 612723), (105, 204241), (167, 128415), (501, 42805), (835, 25683), (1169, 18345), (1223, 17535), (2505, 8561), (3507, 6115), (3669, 5845)]