21298828

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{6257}}^1$

素因数の和:6321

約数の個数: 24

約数和(自身を含む): 39951072

約数和(自身を除く): 18652244

約数列:

[1, 2, 4, 23, 37, 46, 74, 92, 148, 851, 1702, 3404, 6257, 12514, 25028, 143911, 231509, 287822, 463018, 575644, 926036, 5324707, 10649414, 21298828]

約数ペア:

[(1, 21298828), (2, 10649414), (4, 5324707), (23, 926036), (37, 575644), (46, 463018), (74, 287822), (92, 231509), (148, 143911), (851, 25028), (1702, 12514), (3404, 6257)]