21856284

素因数分解:

$2^2\times 3^3\times {\mathrm{157}}^1\times {\mathrm{1289}}^1$

素因数の和:1459

約数の個数: 48

約数和(自身を含む): 57069600

約数和(自身を除く): 35213316

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 157, 314, 471, 628, 942, 1289, 1413, 1884, 2578, 2826, 3867, 4239, 5156, 5652, 7734, 8478, 11601, 15468, 16956, 23202, 34803, 46404, 69606, 139212, 202373, 404746, 607119, 809492, 1214238, 1821357, 2428476, 3642714, 5464071, 7285428, 10928142, 21856284]

約数ペア:

[(1, 21856284), (2, 10928142), (3, 7285428), (4, 5464071), (6, 3642714), (9, 2428476), (12, 1821357), (18, 1214238), (27, 809492), (36, 607119), (54, 404746), (108, 202373), (157, 139212), (314, 69606), (471, 46404), (628, 34803), (942, 23202), (1289, 16956), (1413, 15468), (1884, 11601), (2578, 8478), (2826, 7734), (3867, 5652), (4239, 5156)]