21819610

素因数分解:

$2^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{3301}}^1$

素因数の和:3969

約数の個数: 16

約数和(自身を含む): 39346632

約数和(自身を除く): 17527022

約数列:

[1, 2, 5, 10, 661, 1322, 3301, 3305, 6602, 6610, 16505, 33010, 2181961, 4363922, 10909805, 21819610]

約数ペア:

[(1, 21819610), (2, 10909805), (5, 4363922), (10, 2181961), (661, 33010), (1322, 16505), (3301, 6610), (3305, 6602)]