28378378

素因数分解:

$2^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{12911}}^1$

素因数の和:13077

約数の個数: 16

約数和(自身を含む): 48962304

約数和(自身を除く): 20583926

約数列:

[1, 2, 7, 14, 157, 314, 1099, 2198, 12911, 25822, 90377, 180754, 2027027, 4054054, 14189189, 28378378]

約数ペア:

[(1, 28378378), (2, 14189189), (7, 4054054), (14, 2027027), (157, 180754), (314, 90377), (1099, 25822), (2198, 12911)]