20503994

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1721}}^1$

素因数の和:1790

約数の個数: 32

約数和(自身を含む): 37691136

約数和(自身を除く): 17187142

約数列:

[1, 2, 7, 14, 23, 37, 46, 74, 161, 259, 322, 518, 851, 1702, 1721, 3442, 5957, 11914, 12047, 24094, 39583, 63677, 79166, 127354, 277081, 445739, 554162, 891478, 1464571, 2929142, 10251997, 20503994]

約数ペア:

[(1, 20503994), (2, 10251997), (7, 2929142), (14, 1464571), (23, 891478), (37, 554162), (46, 445739), (74, 277081), (161, 127354), (259, 79166), (322, 63677), (518, 39583), (851, 24094), (1702, 12047), (1721, 11914), (3442, 5957)]