21999735

素因数分解:

$3^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1523}}^1$

素因数の和:1644

約数の個数: 32

約数和(自身を含む): 39502080

約数和(自身を除く): 17502345

約数列:

[1, 3, 5, 9, 15, 27, 45, 107, 135, 321, 535, 963, 1523, 1605, 2889, 4569, 4815, 7615, 13707, 14445, 22845, 41121, 68535, 162961, 205605, 488883, 814805, 1466649, 2444415, 4399947, 7333245, 21999735]

約数ペア:

[(1, 21999735), (3, 7333245), (5, 4399947), (9, 2444415), (15, 1466649), (27, 814805), (45, 488883), (107, 205605), (135, 162961), (321, 68535), (535, 41121), (963, 22845), (1523, 14445), (1605, 13707), (2889, 7615), (4569, 4815)]