20870308

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{1709}}^1$

素因数の和:1827

約数の個数: 24

約数和(自身を含む): 37920960

約数和(自身を除く): 17050652

約数列:

[1, 2, 4, 43, 71, 86, 142, 172, 284, 1709, 3053, 3418, 6106, 6836, 12212, 73487, 121339, 146974, 242678, 293948, 485356, 5217577, 10435154, 20870308]

約数ペア:

[(1, 20870308), (2, 10435154), (4, 5217577), (43, 485356), (71, 293948), (86, 242678), (142, 146974), (172, 121339), (284, 73487), (1709, 12212), (3053, 6836), (3418, 6106)]