18907791

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{52963}}^1$

素因数の和:52990

約数の個数: 16

約数和(自身を含む): 30507264

約数和(自身を除く): 11599473

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 52963, 158889, 370741, 900371, 1112223, 2701113, 6302597, 18907791]

約数ペア:

[(1, 18907791), (3, 6302597), (7, 2701113), (17, 1112223), (21, 900371), (51, 370741), (119, 158889), (357, 52963)]