21537494

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{7043}}^1$

素因数の和:7195

約数の個数: 16

約数和(自身を含む): 35501760

約数和(自身を除く): 13964266

約数列:

[1, 2, 11, 22, 139, 278, 1529, 3058, 7043, 14086, 77473, 154946, 978977, 1957954, 10768747, 21537494]

約数ペア:

[(1, 21537494), (2, 10768747), (11, 1957954), (22, 978977), (139, 154946), (278, 77473), (1529, 14086), (3058, 7043)]