21407738

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{557}}^1\times {\mathrm{1747}}^1$

素因数の和:2317

約数の個数: 16

約数和(自身を含む): 35113824

約数和(自身を除く): 13706086

約数列:

[1, 2, 11, 22, 557, 1114, 1747, 3494, 6127, 12254, 19217, 38434, 973079, 1946158, 10703869, 21407738]

約数ペア:

[(1, 21407738), (2, 10703869), (11, 1946158), (22, 973079), (557, 38434), (1114, 19217), (1747, 12254), (3494, 6127)]