21620270

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{44123}}^1$

素因数の和:44144

約数の個数: 24

約数和(自身を含む): 45271224

約数和(自身を除く): 23650954

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 44123, 88246, 220615, 308861, 441230, 617722, 1544305, 2162027, 3088610, 4324054, 10810135, 21620270]

約数ペア:

[(1, 21620270), (2, 10810135), (5, 4324054), (7, 3088610), (10, 2162027), (14, 1544305), (35, 617722), (49, 441230), (70, 308861), (98, 220615), (245, 88246), (490, 44123)]