21256284

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{4289}}^1$

素因数の和:4362

約数の個数: 48

約数和(自身を含む): 57657600

約数和(自身を除く): 36401316

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 59, 84, 118, 177, 236, 354, 413, 708, 826, 1239, 1652, 2478, 4289, 4956, 8578, 12867, 17156, 25734, 30023, 51468, 60046, 90069, 120092, 180138, 253051, 360276, 506102, 759153, 1012204, 1518306, 1771357, 3036612, 3542714, 5314071, 7085428, 10628142, 21256284]

約数ペア:

[(1, 21256284), (2, 10628142), (3, 7085428), (4, 5314071), (6, 3542714), (7, 3036612), (12, 1771357), (14, 1518306), (21, 1012204), (28, 759153), (42, 506102), (59, 360276), (84, 253051), (118, 180138), (177, 120092), (236, 90069), (354, 60046), (413, 51468), (708, 30023), (826, 25734), (1239, 17156), (1652, 12867), (2478, 8578), (4289, 4956)]