16921575

素因数分解:

$3^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:126

約数の個数: 96

約数和(自身を含む): 35354880

約数和(自身を除く): 18433305

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 43, 45, 53, 55, 75, 99, 129, 135, 159, 165, 215, 225, 265, 275, 297, 387, 473, 477, 495, 583, 645, 675, 795, 825, 1075, 1161, 1325, 1419, 1431, 1485, 1749, 1935, 2279, 2365, 2385, 2475, 2915, 3225, 3975, 4257, 5247, 5805, 6837, 7095, 7155, 7425, 8745, 9675, 11395, 11825, 11925, 12771, 14575, 15741, 20511, 21285, 25069, 26235, 29025, 34185, 35475, 35775, 43725, 56975, 61533, 63855, 75207, 78705, 102555, 106425, 125345, 131175, 170925, 225621, 307665, 319275, 376035, 393525, 512775, 626725, 676863, 1128105, 1538325, 1880175, 3384315, 5640525, 16921575]

約数ペア:

[(1, 16921575), (3, 5640525), (5, 3384315), (9, 1880175), (11, 1538325), (15, 1128105), (25, 676863), (27, 626725), (33, 512775), (43, 393525), (45, 376035), (53, 319275), (55, 307665), (75, 225621), (99, 170925), (129, 131175), (135, 125345), (159, 106425), (165, 102555), (215, 78705), (225, 75207), (265, 63855), (275, 61533), (297, 56975), (387, 43725), (473, 35775), (477, 35475), (495, 34185), (583, 29025), (645, 26235), (675, 25069), (795, 21285), (825, 20511), (1075, 15741), (1161, 14575), (1325, 12771), (1419, 11925), (1431, 11825), (1485, 11395), (1749, 9675), (1935, 8745), (2279, 7425), (2365, 7155), (2385, 7095), (2475, 6837), (2915, 5805), (3225, 5247), (3975, 4257)]