21328894

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{2213}}^1$

素因数の和:2355

約数の個数: 16

約数和(自身を含む): 32944320

約数和(自身を除く): 11615426

約数列:

[1, 2, 61, 79, 122, 158, 2213, 4426, 4819, 9638, 134993, 174827, 269986, 349654, 10664447, 21328894]

約数ペア:

[(1, 21328894), (2, 10664447), (61, 349654), (79, 269986), (122, 174827), (158, 134993), (2213, 9638), (4426, 4819)]