21734415

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28411}}^1$

素因数の和:28439

約数の個数: 24

約数和(自身を含む): 39890448

約数和(自身を除く): 18156033

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 28411, 85233, 142055, 255699, 426165, 482987, 1278495, 1448961, 2414935, 4346883, 7244805, 21734415]

約数ペア:

[(1, 21734415), (3, 7244805), (5, 4346883), (9, 2414935), (15, 1448961), (17, 1278495), (45, 482987), (51, 426165), (85, 255699), (153, 142055), (255, 85233), (765, 28411)]