21309530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193723}}^1$

素因数の和:193741

約数の個数: 16

約数和(自身を含む): 41844384

約数和(自身を除く): 20534854

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 193723, 387446, 968615, 1937230, 2130953, 4261906, 10654765, 21309530]

約数ペア:

[(1, 21309530), (2, 10654765), (5, 4261906), (10, 2130953), (11, 1937230), (22, 968615), (55, 387446), (110, 193723)]