21949686

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{6521}}^1$

素因数の和:6557

約数の個数: 48

約数和(自身を含む): 54941328

約数和(自身を除く): 32991642

約数列:

[1, 2, 3, 6, 9, 11, 17, 18, 22, 33, 34, 51, 66, 99, 102, 153, 187, 198, 306, 374, 561, 1122, 1683, 3366, 6521, 13042, 19563, 39126, 58689, 71731, 110857, 117378, 143462, 215193, 221714, 332571, 430386, 645579, 665142, 997713, 1219427, 1291158, 1995426, 2438854, 3658281, 7316562, 10974843, 21949686]

約数ペア:

[(1, 21949686), (2, 10974843), (3, 7316562), (6, 3658281), (9, 2438854), (11, 1995426), (17, 1291158), (18, 1219427), (22, 997713), (33, 665142), (34, 645579), (51, 430386), (66, 332571), (99, 221714), (102, 215193), (153, 143462), (187, 117378), (198, 110857), (306, 71731), (374, 58689), (561, 39126), (1122, 19563), (1683, 13042), (3366, 6521)]