20924595

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{293}}^1$

素因数の和:353

約数の個数: 48

約数和(自身を含む): 39019680

約数和(自身を除く): 18095085

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 293, 345, 529, 621, 879, 1035, 1465, 1587, 2637, 2645, 3105, 4395, 4761, 6739, 7911, 7935, 13185, 14283, 20217, 23805, 33695, 39555, 60651, 71415, 101085, 154997, 181953, 303255, 464991, 774985, 909765, 1394973, 2324955, 4184919, 6974865, 20924595]

約数ペア:

[(1, 20924595), (3, 6974865), (5, 4184919), (9, 2324955), (15, 1394973), (23, 909765), (27, 774985), (45, 464991), (69, 303255), (115, 181953), (135, 154997), (207, 101085), (293, 71415), (345, 60651), (529, 39555), (621, 33695), (879, 23805), (1035, 20217), (1465, 14283), (1587, 13185), (2637, 7935), (2645, 7911), (3105, 6739), (4395, 4761)]