21267328

素因数分解:

$2^7\times {\mathrm{166151}}^1$

素因数の和:166165

約数の個数: 16

約数和(自身を含む): 42368760

約数和(自身を除く): 21101432

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 166151, 332302, 664604, 1329208, 2658416, 5316832, 10633664, 21267328]

約数ペア:

[(1, 21267328), (2, 10633664), (4, 5316832), (8, 2658416), (16, 1329208), (32, 664604), (64, 332302), (128, 166151)]