21230512

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{12401}}^1$

素因数の和:12516

約数の個数: 20

約数和(自身を含む): 41521896

約数和(自身を除く): 20291384

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 12401, 24802, 49604, 99208, 198416, 1326907, 2653814, 5307628, 10615256, 21230512]

約数ペア:

[(1, 21230512), (2, 10615256), (4, 5307628), (8, 2653814), (16, 1326907), (107, 198416), (214, 99208), (428, 49604), (856, 24802), (1712, 12401)]