21031812

素因数分解:

$2^2\times 3^4\times {\mathrm{139}}^1\times {\mathrm{467}}^1$

素因数の和:622

約数の個数: 60

約数和(自身を含む): 55495440

約数和(自身を除く): 34463628

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 139, 162, 278, 324, 417, 467, 556, 834, 934, 1251, 1401, 1668, 1868, 2502, 2802, 3753, 4203, 5004, 5604, 7506, 8406, 11259, 12609, 15012, 16812, 22518, 25218, 37827, 45036, 50436, 64913, 75654, 129826, 151308, 194739, 259652, 389478, 584217, 778956, 1168434, 1752651, 2336868, 3505302, 5257953, 7010604, 10515906, 21031812]

約数ペア:

[(1, 21031812), (2, 10515906), (3, 7010604), (4, 5257953), (6, 3505302), (9, 2336868), (12, 1752651), (18, 1168434), (27, 778956), (36, 584217), (54, 389478), (81, 259652), (108, 194739), (139, 151308), (162, 129826), (278, 75654), (324, 64913), (417, 50436), (467, 45036), (556, 37827), (834, 25218), (934, 22518), (1251, 16812), (1401, 15012), (1668, 12609), (1868, 11259), (2502, 8406), (2802, 7506), (3753, 5604), (4203, 5004)]