21857628

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{839}}^1$

素因数の和:1026

約数の個数: 48

約数和(自身を含む): 55319040

約数和(自身を除く): 33461412

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 167, 334, 501, 668, 839, 1002, 1678, 2004, 2171, 2517, 3356, 4342, 5034, 6513, 8684, 10068, 10907, 13026, 21814, 26052, 32721, 43628, 65442, 130884, 140113, 280226, 420339, 560452, 840678, 1681356, 1821469, 3642938, 5464407, 7285876, 10928814, 21857628]

約数ペア:

[(1, 21857628), (2, 10928814), (3, 7285876), (4, 5464407), (6, 3642938), (12, 1821469), (13, 1681356), (26, 840678), (39, 560452), (52, 420339), (78, 280226), (156, 140113), (167, 130884), (334, 65442), (501, 43628), (668, 32721), (839, 26052), (1002, 21814), (1678, 13026), (2004, 10907), (2171, 10068), (2517, 8684), (3356, 6513), (4342, 5034)]