189905895

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{248243}}^1$

素因数の和:248271

約数の個数: 24

約数和(自身を含む): 348534576

約数和(自身を除く): 158628681

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 248243, 744729, 1241215, 2234187, 3723645, 4220131, 11170935, 12660393, 21100655, 37981179, 63301965, 189905895]

約数ペア:

[(1, 189905895), (3, 63301965), (5, 37981179), (9, 21100655), (15, 12660393), (17, 11170935), (45, 4220131), (51, 3723645), (85, 2234187), (153, 1241215), (255, 744729), (765, 248243)]