21120324

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{5449}}^1$

素因数の和:5492

約数の個数: 48

約数和(自身を含む): 54936000

約数和(自身を除く): 33815676

約数列:

[1, 2, 3, 4, 6, 12, 17, 19, 34, 38, 51, 57, 68, 76, 102, 114, 204, 228, 323, 646, 969, 1292, 1938, 3876, 5449, 10898, 16347, 21796, 32694, 65388, 92633, 103531, 185266, 207062, 277899, 310593, 370532, 414124, 555798, 621186, 1111596, 1242372, 1760027, 3520054, 5280081, 7040108, 10560162, 21120324]

約数ペア:

[(1, 21120324), (2, 10560162), (3, 7040108), (4, 5280081), (6, 3520054), (12, 1760027), (17, 1242372), (19, 1111596), (34, 621186), (38, 555798), (51, 414124), (57, 370532), (68, 310593), (76, 277899), (102, 207062), (114, 185266), (204, 103531), (228, 92633), (323, 65388), (646, 32694), (969, 21796), (1292, 16347), (1938, 10898), (3876, 5449)]