20542938

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2557}}^1$

素因数の和:2678

約数の個数: 32

約数和(自身を含む): 44693376

約数和(自身を除く): 24150438

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 103, 206, 309, 618, 1339, 2557, 2678, 4017, 5114, 7671, 8034, 15342, 33241, 66482, 99723, 199446, 263371, 526742, 790113, 1580226, 3423823, 6847646, 10271469, 20542938]

約数ペア:

[(1, 20542938), (2, 10271469), (3, 6847646), (6, 3423823), (13, 1580226), (26, 790113), (39, 526742), (78, 263371), (103, 199446), (206, 99723), (309, 66482), (618, 33241), (1339, 15342), (2557, 8034), (2678, 7671), (4017, 5114)]