21146216

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{937}}^1$

素因数の和:994

約数の個数: 64

約数和(自身を含む): 50426880

約数和(自身を除く): 29280664

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 31, 52, 56, 62, 91, 104, 124, 182, 217, 248, 364, 403, 434, 728, 806, 868, 937, 1612, 1736, 1874, 2821, 3224, 3748, 5642, 6559, 7496, 11284, 12181, 13118, 22568, 24362, 26236, 29047, 48724, 52472, 58094, 85267, 97448, 116188, 170534, 203329, 232376, 341068, 377611, 406658, 682136, 755222, 813316, 1510444, 1626632, 2643277, 3020888, 5286554, 10573108, 21146216]

約数ペア:

[(1, 21146216), (2, 10573108), (4, 5286554), (7, 3020888), (8, 2643277), (13, 1626632), (14, 1510444), (26, 813316), (28, 755222), (31, 682136), (52, 406658), (56, 377611), (62, 341068), (91, 232376), (104, 203329), (124, 170534), (182, 116188), (217, 97448), (248, 85267), (364, 58094), (403, 52472), (434, 48724), (728, 29047), (806, 26236), (868, 24362), (937, 22568), (1612, 13118), (1736, 12181), (1874, 11284), (2821, 7496), (3224, 6559), (3748, 5642)]