20980974

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{4583}}^1$

素因数の和:4704

約数の個数: 32

約数和(自身を含む): 48407040

約数和(自身を除く): 27426066

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 109, 218, 327, 654, 763, 1526, 2289, 4578, 4583, 9166, 13749, 27498, 32081, 64162, 96243, 192486, 499547, 999094, 1498641, 2997282, 3496829, 6993658, 10490487, 20980974]

約数ペア:

[(1, 20980974), (2, 10490487), (3, 6993658), (6, 3496829), (7, 2997282), (14, 1498641), (21, 999094), (42, 499547), (109, 192486), (218, 96243), (327, 64162), (654, 32081), (763, 27498), (1526, 13749), (2289, 9166), (4578, 4583)]