21731948

素因数分解:

$2^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{5209}}^1$

素因数の和:5369

約数の個数: 24

約数和(自身を含む): 43764000

約数和(自身を除く): 22032052

約数列:

[1, 2, 4, 7, 14, 28, 149, 298, 596, 1043, 2086, 4172, 5209, 10418, 20836, 36463, 72926, 145852, 776141, 1552282, 3104564, 5432987, 10865974, 21731948]

約数ペア:

[(1, 21731948), (2, 10865974), (4, 5432987), (7, 3104564), (14, 1552282), (28, 776141), (149, 145852), (298, 72926), (596, 36463), (1043, 20836), (2086, 10418), (4172, 5209)]