19658835

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{293}}^1$

素因数の和:385

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 20983725

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 71, 105, 135, 189, 213, 293, 315, 355, 497, 639, 879, 945, 1065, 1465, 1491, 1917, 2051, 2485, 2637, 3195, 4395, 4473, 6153, 7455, 7911, 9585, 10255, 13185, 13419, 18459, 20803, 22365, 30765, 39555, 55377, 62409, 67095, 92295, 104015, 145621, 187227, 276885, 312045, 436863, 561681, 728105, 936135, 1310589, 2184315, 2808405, 3931767, 6552945, 19658835]

約数ペア:

[(1, 19658835), (3, 6552945), (5, 3931767), (7, 2808405), (9, 2184315), (15, 1310589), (21, 936135), (27, 728105), (35, 561681), (45, 436863), (63, 312045), (71, 276885), (105, 187227), (135, 145621), (189, 104015), (213, 92295), (293, 67095), (315, 62409), (355, 55377), (497, 39555), (639, 30765), (879, 22365), (945, 20803), (1065, 18459), (1465, 13419), (1491, 13185), (1917, 10255), (2051, 9585), (2485, 7911), (2637, 7455), (3195, 6153), (4395, 4473)]