11899815

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 19900416

約数和(自身を除く): 8000601

約数列:

[1, 3, 5, 15, 31, 93, 155, 157, 163, 465, 471, 489, 785, 815, 2355, 2445, 4867, 5053, 14601, 15159, 24335, 25265, 25591, 73005, 75795, 76773, 127955, 383865, 793321, 2379963, 3966605, 11899815]

約数ペア:

[(1, 11899815), (3, 3966605), (5, 2379963), (15, 793321), (31, 383865), (93, 127955), (155, 76773), (157, 75795), (163, 73005), (465, 25591), (471, 25265), (489, 24335), (785, 15159), (815, 14601), (2355, 5053), (2445, 4867)]