18707364

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{563}}^1$

素因数の和:657

約数の個数: 72

約数和(自身を含む): 51734592

約数和(自身を除く): 33027228

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 71, 78, 117, 142, 156, 213, 234, 284, 426, 468, 563, 639, 852, 923, 1126, 1278, 1689, 1846, 2252, 2556, 2769, 3378, 3692, 5067, 5538, 6756, 7319, 8307, 10134, 11076, 14638, 16614, 20268, 21957, 29276, 33228, 39973, 43914, 65871, 79946, 87828, 119919, 131742, 159892, 239838, 263484, 359757, 479676, 519649, 719514, 1039298, 1439028, 1558947, 2078596, 3117894, 4676841, 6235788, 9353682, 18707364]

約数ペア:

[(1, 18707364), (2, 9353682), (3, 6235788), (4, 4676841), (6, 3117894), (9, 2078596), (12, 1558947), (13, 1439028), (18, 1039298), (26, 719514), (36, 519649), (39, 479676), (52, 359757), (71, 263484), (78, 239838), (117, 159892), (142, 131742), (156, 119919), (213, 87828), (234, 79946), (284, 65871), (426, 43914), (468, 39973), (563, 33228), (639, 29276), (852, 21957), (923, 20268), (1126, 16614), (1278, 14638), (1689, 11076), (1846, 10134), (2252, 8307), (2556, 7319), (2769, 6756), (3378, 5538), (3692, 5067)]