21355468

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{16529}}^1$

素因数の和:16569

約数の個数: 24

約数和(自身を含む): 41655600

約数和(自身を除く): 20300132

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292, 16529, 33058, 66116, 280993, 314051, 561986, 628102, 1123972, 1256204, 5338867, 10677734, 21355468]

約数ペア:

[(1, 21355468), (2, 10677734), (4, 5338867), (17, 1256204), (19, 1123972), (34, 628102), (38, 561986), (68, 314051), (76, 280993), (323, 66116), (646, 33058), (1292, 16529)]