20803665

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{4799}}^1$

素因数の和:4841

約数の個数: 24

約数和(自身を含む): 35366400

約数和(自身を除く): 14562735

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 289, 867, 1445, 4335, 4799, 14397, 23995, 71985, 81583, 244749, 407915, 1223745, 1386911, 4160733, 6934555, 20803665]

約数ペア:

[(1, 20803665), (3, 6934555), (5, 4160733), (15, 1386911), (17, 1223745), (51, 407915), (85, 244749), (255, 81583), (289, 71985), (867, 23995), (1445, 14397), (4335, 4799)]