21330616

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{140333}}^1$

素因数の和:140358

約数の個数: 16

約数和(自身を含む): 42100200

約数和(自身を除く): 20769584

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 140333, 280666, 561332, 1122664, 2666327, 5332654, 10665308, 21330616]

約数ペア:

[(1, 21330616), (2, 10665308), (4, 5332654), (8, 2666327), (19, 1122664), (38, 561332), (76, 280666), (152, 140333)]