21571236

素因数分解:

$2^2\times 3^2\times {\mathrm{223}}^1\times {\mathrm{2687}}^1$

素因数の和:2920

約数の個数: 36

約数和(自身を含む): 54792192

約数和(自身を除く): 33220956

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 223, 446, 669, 892, 1338, 2007, 2676, 2687, 4014, 5374, 8028, 8061, 10748, 16122, 24183, 32244, 48366, 96732, 599201, 1198402, 1797603, 2396804, 3595206, 5392809, 7190412, 10785618, 21571236]

約数ペア:

[(1, 21571236), (2, 10785618), (3, 7190412), (4, 5392809), (6, 3595206), (9, 2396804), (12, 1797603), (18, 1198402), (36, 599201), (223, 96732), (446, 48366), (669, 32244), (892, 24183), (1338, 16122), (2007, 10748), (2676, 8061), (2687, 8028), (4014, 5374)]