21523384

素因数分解:

$2^3\times {\mathrm{239}}^1\times {\mathrm{11257}}^1$

素因数の和:11502

約数の個数: 16

約数和(自身を含む): 40528800

約数和(自身を除く): 19005416

約数列:

[1, 2, 4, 8, 239, 478, 956, 1912, 11257, 22514, 45028, 90056, 2690423, 5380846, 10761692, 21523384]

約数ペア:

[(1, 21523384), (2, 10761692), (4, 5380846), (8, 2690423), (239, 90056), (478, 45028), (956, 22514), (1912, 11257)]