18949791

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{10139}}^1$

素因数の和:10238

約数の個数: 16

約数和(自身を含む): 29203200

約数和(自身を除く): 10253409

約数列:

[1, 3, 7, 21, 89, 267, 623, 1869, 10139, 30417, 70973, 212919, 902371, 2707113, 6316597, 18949791]

約数ペア:

[(1, 18949791), (3, 6316597), (7, 2707113), (21, 902371), (89, 212919), (267, 70973), (623, 30417), (1869, 10139)]