21071582

素因数分解:

$2^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{2957}}^1$

素因数の和:3475

約数の個数: 16

約数和(自身を含む): 36205920

約数和(自身を除く): 15134338

約数列:

[1, 2, 7, 14, 509, 1018, 2957, 3563, 5914, 7126, 20699, 41398, 1505113, 3010226, 10535791, 21071582]

約数ペア:

[(1, 21071582), (2, 10535791), (7, 3010226), (14, 1505113), (509, 41398), (1018, 20699), (2957, 7126), (3563, 5914)]