21493605

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{29243}}^1$

素因数の和:29265

約数の個数: 24

約数和(自身を含む): 40005792

約数和(自身を除く): 18512187

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 29243, 87729, 146215, 204701, 438645, 614103, 1023505, 1432907, 3070515, 4298721, 7164535, 21493605]

約数ペア:

[(1, 21493605), (3, 7164535), (5, 4298721), (7, 3070515), (15, 1432907), (21, 1023505), (35, 614103), (49, 438645), (105, 204701), (147, 146215), (245, 87729), (735, 29243)]