16657881

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 24281088

約数和(自身を除く): 7623207

約数列:

[1, 3, 31, 37, 47, 93, 103, 111, 141, 309, 1147, 1457, 1739, 3193, 3441, 3811, 4371, 4841, 5217, 9579, 11433, 14523, 53909, 118141, 150071, 161727, 179117, 354423, 450213, 537351, 5552627, 16657881]

約数ペア:

[(1, 16657881), (3, 5552627), (31, 537351), (37, 450213), (47, 354423), (93, 179117), (103, 161727), (111, 150071), (141, 118141), (309, 53909), (1147, 14523), (1457, 11433), (1739, 9579), (3193, 5217), (3441, 4841), (3811, 4371)]