20381598

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{101}}^2$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 46981680

約数和(自身を除く): 26600082

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 101, 111, 202, 222, 303, 333, 606, 666, 909, 999, 1818, 1998, 2727, 3737, 5454, 7474, 10201, 11211, 20402, 22422, 30603, 33633, 61206, 67266, 91809, 100899, 183618, 201798, 275427, 377437, 550854, 754874, 1132311, 2264622, 3396933, 6793866, 10190799, 20381598]

約数ペア:

[(1, 20381598), (2, 10190799), (3, 6793866), (6, 3396933), (9, 2264622), (18, 1132311), (27, 754874), (37, 550854), (54, 377437), (74, 275427), (101, 201798), (111, 183618), (202, 100899), (222, 91809), (303, 67266), (333, 61206), (606, 33633), (666, 30603), (909, 22422), (999, 20402), (1818, 11211), (1998, 10201), (2727, 7474), (3737, 5454)]