18892981

素因数分解:

${\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:292

約数の個数: 16

約数和(自身を含む): 20220928

約数和(自身を除く): 1327947

約数列:

[1, 31, 61, 97, 103, 1891, 3007, 3193, 5917, 6283, 9991, 183427, 194773, 309721, 609451, 18892981]

約数ペア:

[(1, 18892981), (31, 609451), (61, 309721), (97, 194773), (103, 183427), (1891, 9991), (3007, 6283), (3193, 5917)]