21535804

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{316703}}^1$

素因数の和:316724

約数の個数: 12

約数和(自身を含む): 39904704

約数和(自身を除く): 18368900

約数列:

[1, 2, 4, 17, 34, 68, 316703, 633406, 1266812, 5383951, 10767902, 21535804]

約数ペア:

[(1, 21535804), (2, 10767902), (4, 5383951), (17, 1266812), (34, 633406), (68, 316703)]