21590380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{22031}}^1$

素因数の和:22054

約数の個数: 36

約数和(自身を含む): 52744608

約数和(自身を除く): 31154228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 22031, 44062, 88124, 110155, 154217, 220310, 308434, 440620, 616868, 771085, 1079519, 1542170, 2159038, 3084340, 4318076, 5397595, 10795190, 21590380]

約数ペア:

[(1, 21590380), (2, 10795190), (4, 5397595), (5, 4318076), (7, 3084340), (10, 2159038), (14, 1542170), (20, 1079519), (28, 771085), (35, 616868), (49, 440620), (70, 308434), (98, 220310), (140, 154217), (196, 110155), (245, 88124), (490, 44062), (980, 22031)]