18849663

素因数分解:

$3^2\times 7^2\times {\mathrm{42743}}^1$

素因数の和:42763

約数の個数: 18

約数和(自身を含む): 31673304

約数和(自身を除く): 12823641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 42743, 128229, 299201, 384687, 897603, 2094407, 2692809, 6283221, 18849663]

約数ペア:

[(1, 18849663), (3, 6283221), (7, 2692809), (9, 2094407), (21, 897603), (49, 384687), (63, 299201), (147, 128229), (441, 42743)]