220971999

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{353}}^1$

素因数の和:567

約数の個数: 32

約数和(自身を含む): 313196544

約数和(自身を除く): 92224545

約数列:

[1, 3, 31, 53, 93, 127, 159, 353, 381, 1059, 1643, 3937, 4929, 6731, 10943, 11811, 18709, 20193, 32829, 44831, 56127, 134493, 208661, 579979, 625983, 1389761, 1739937, 2376043, 4169283, 7128129, 73657333, 220971999]

約数ペア:

[(1, 220971999), (3, 73657333), (31, 7128129), (53, 4169283), (93, 2376043), (127, 1739937), (159, 1389761), (353, 625983), (381, 579979), (1059, 208661), (1643, 134493), (3937, 56127), (4929, 44831), (6731, 32829), (10943, 20193), (11811, 18709)]