20812275

素因数分解:

$3^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{2803}}^1$

素因数の和:2833

約数の個数: 48

約数和(自身を含む): 41723520

約数和(自身を除く): 20911245

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 99, 135, 165, 225, 275, 297, 495, 675, 825, 1485, 2475, 2803, 7425, 8409, 14015, 25227, 30833, 42045, 70075, 75681, 92499, 126135, 154165, 210225, 277497, 378405, 462495, 630675, 770825, 832491, 1387485, 1892025, 2312475, 4162455, 6937425, 20812275]

約数ペア:

[(1, 20812275), (3, 6937425), (5, 4162455), (9, 2312475), (11, 1892025), (15, 1387485), (25, 832491), (27, 770825), (33, 630675), (45, 462495), (55, 378405), (75, 277497), (99, 210225), (135, 154165), (165, 126135), (225, 92499), (275, 75681), (297, 70075), (495, 42045), (675, 30833), (825, 25227), (1485, 14015), (2475, 8409), (2803, 7425)]