18421425

素因数分解:

$3^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{827}}^1$

素因数の和:860

約数の個数: 60

約数和(自身を含む): 37269936

約数和(自身を除く): 18848511

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 81, 99, 135, 165, 225, 275, 297, 405, 495, 675, 825, 827, 891, 1485, 2025, 2475, 2481, 4135, 4455, 7425, 7443, 9097, 12405, 20675, 22275, 22329, 27291, 37215, 45485, 62025, 66987, 81873, 111645, 136455, 186075, 227425, 245619, 334935, 409365, 558225, 682275, 736857, 1228095, 1674675, 2046825, 3684285, 6140475, 18421425]

約数ペア:

[(1, 18421425), (3, 6140475), (5, 3684285), (9, 2046825), (11, 1674675), (15, 1228095), (25, 736857), (27, 682275), (33, 558225), (45, 409365), (55, 334935), (75, 245619), (81, 227425), (99, 186075), (135, 136455), (165, 111645), (225, 81873), (275, 66987), (297, 62025), (405, 45485), (495, 37215), (675, 27291), (825, 22329), (827, 22275), (891, 20675), (1485, 12405), (2025, 9097), (2475, 7443), (2481, 7425), (4135, 4455)]