21718444

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{313}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 44311680

約数和(自身を除く): 22593236

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 83, 166, 209, 313, 332, 418, 626, 836, 913, 1252, 1577, 1826, 3154, 3443, 3652, 5947, 6308, 6886, 11894, 13772, 17347, 23788, 25979, 34694, 51958, 65417, 69388, 103916, 130834, 261668, 285769, 493601, 571538, 987202, 1143076, 1974404, 5429611, 10859222, 21718444]

約数ペア:

[(1, 21718444), (2, 10859222), (4, 5429611), (11, 1974404), (19, 1143076), (22, 987202), (38, 571538), (44, 493601), (76, 285769), (83, 261668), (166, 130834), (209, 103916), (313, 69388), (332, 65417), (418, 51958), (626, 34694), (836, 25979), (913, 23788), (1252, 17347), (1577, 13772), (1826, 11894), (3154, 6886), (3443, 6308), (3652, 5947)]