208933515

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{663281}}^1$

素因数の和:663299

約数の個数: 24

約数和(自身を含む): 413887968

約数和(自身を除く): 204954453

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 663281, 1989843, 3316405, 4642967, 5969529, 9949215, 13928901, 23214835, 29847645, 41786703, 69644505, 208933515]

約数ペア:

[(1, 208933515), (3, 69644505), (5, 41786703), (7, 29847645), (9, 23214835), (15, 13928901), (21, 9949215), (35, 5969529), (45, 4642967), (63, 3316405), (105, 1989843), (315, 663281)]