21500774

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{233}}^1$

素因数の和:344

約数の個数: 32

約数和(自身を含む): 35212320

約数和(自身を除く): 13711546

約数列:

[1, 2, 29, 37, 43, 58, 74, 86, 233, 466, 1073, 1247, 1591, 2146, 2494, 3182, 6757, 8621, 10019, 13514, 17242, 20038, 46139, 92278, 250009, 290551, 370703, 500018, 581102, 741406, 10750387, 21500774]

約数ペア:

[(1, 21500774), (2, 10750387), (29, 741406), (37, 581102), (43, 500018), (58, 370703), (74, 290551), (86, 250009), (233, 92278), (466, 46139), (1073, 20038), (1247, 17242), (1591, 13514), (2146, 10019), (2494, 8621), (3182, 6757)]