21119030

素因数分解:

$2^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{7793}}^1$

素因数の和:8071

約数の個数: 16

約数和(自身を含む): 38159424

約数和(自身を除く): 17040394

約数列:

[1, 2, 5, 10, 271, 542, 1355, 2710, 7793, 15586, 38965, 77930, 2111903, 4223806, 10559515, 21119030]

約数ペア:

[(1, 21119030), (2, 10559515), (5, 4223806), (10, 2111903), (271, 77930), (542, 38965), (1355, 15586), (2710, 7793)]