21661906

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67273}}^1$

素因数の和:67305

約数の個数: 16

約数和(自身を含む): 38749824

約数和(自身を除く): 17087918

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 67273, 134546, 470911, 941822, 1547279, 3094558, 10830953, 21661906]

約数ペア:

[(1, 21661906), (2, 10830953), (7, 3094558), (14, 1547279), (23, 941822), (46, 470911), (161, 134546), (322, 67273)]