21019956

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{617}}^1$

素因数の和:808

約数の個数: 48

約数和(自身を含む): 52327296

約数和(自身を除く): 31307340

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102, 167, 204, 334, 501, 617, 668, 1002, 1234, 1851, 2004, 2468, 2839, 3702, 5678, 7404, 8517, 10489, 11356, 17034, 20978, 31467, 34068, 41956, 62934, 103039, 125868, 206078, 309117, 412156, 618234, 1236468, 1751663, 3503326, 5254989, 7006652, 10509978, 21019956]

約数ペア:

[(1, 21019956), (2, 10509978), (3, 7006652), (4, 5254989), (6, 3503326), (12, 1751663), (17, 1236468), (34, 618234), (51, 412156), (68, 309117), (102, 206078), (167, 125868), (204, 103039), (334, 62934), (501, 41956), (617, 34068), (668, 31467), (1002, 20978), (1234, 17034), (1851, 11356), (2004, 10489), (2468, 8517), (2839, 7404), (3702, 5678)]