21849795

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1193}}^1$

素因数の和:1252

約数の個数: 48

約数和(自身を含む): 42468192

約数和(自身を除く): 20618397

約数列:

[1, 3, 5, 9, 11, 15, 33, 37, 45, 55, 99, 111, 165, 185, 333, 407, 495, 555, 1193, 1221, 1665, 2035, 3579, 3663, 5965, 6105, 10737, 13123, 17895, 18315, 39369, 44141, 53685, 65615, 118107, 132423, 196845, 220705, 397269, 485551, 590535, 662115, 1456653, 1986345, 2427755, 4369959, 7283265, 21849795]

約数ペア:

[(1, 21849795), (3, 7283265), (5, 4369959), (9, 2427755), (11, 1986345), (15, 1456653), (33, 662115), (37, 590535), (45, 485551), (55, 397269), (99, 220705), (111, 196845), (165, 132423), (185, 118107), (333, 65615), (407, 53685), (495, 44141), (555, 39369), (1193, 18315), (1221, 17895), (1665, 13123), (2035, 10737), (3579, 6105), (3663, 5965)]