28294791

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{15139}}^1$

素因数の和:15238

約数の個数: 16

約数和(自身を含む): 43603200

約数和(自身を除く): 15308409

約数列:

[1, 3, 7, 21, 89, 267, 623, 1869, 15139, 45417, 105973, 317919, 1347371, 4042113, 9431597, 28294791]

約数ペア:

[(1, 28294791), (3, 9431597), (7, 4042113), (21, 1347371), (89, 317919), (267, 105973), (623, 45417), (1869, 15139)]