16890615

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^2$

素因数の和:133

約数の個数: 72

約数和(自身を含む): 35436960

約数和(自身を除く): 18546345

約数列:

[1, 3, 5, 7, 9, 15, 21, 29, 35, 43, 45, 63, 87, 105, 129, 145, 203, 215, 261, 301, 315, 387, 435, 609, 645, 903, 1015, 1247, 1305, 1505, 1827, 1849, 1935, 2709, 3045, 3741, 4515, 5547, 6235, 8729, 9135, 9245, 11223, 12943, 13545, 16641, 18705, 26187, 27735, 38829, 43645, 53621, 56115, 64715, 78561, 83205, 116487, 130935, 160863, 194145, 268105, 375347, 392805, 482589, 582435, 804315, 1126041, 1876735, 2412945, 3378123, 5630205, 16890615]

約数ペア:

[(1, 16890615), (3, 5630205), (5, 3378123), (7, 2412945), (9, 1876735), (15, 1126041), (21, 804315), (29, 582435), (35, 482589), (43, 392805), (45, 375347), (63, 268105), (87, 194145), (105, 160863), (129, 130935), (145, 116487), (203, 83205), (215, 78561), (261, 64715), (301, 56115), (315, 53621), (387, 43645), (435, 38829), (609, 27735), (645, 26187), (903, 18705), (1015, 16641), (1247, 13545), (1305, 12943), (1505, 11223), (1827, 9245), (1849, 9135), (1935, 8729), (2709, 6235), (3045, 5547), (3741, 4515)]