18247136

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:291

約数の個数: 48

約数和(自身を含む): 37422000

約数和(自身を除く): 19174864

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 89, 149, 172, 178, 298, 344, 356, 596, 688, 712, 1192, 1376, 1424, 2384, 2848, 3827, 4768, 6407, 7654, 12814, 13261, 15308, 25628, 26522, 30616, 51256, 53044, 61232, 102512, 106088, 122464, 205024, 212176, 424352, 570223, 1140446, 2280892, 4561784, 9123568, 18247136]

約数ペア:

[(1, 18247136), (2, 9123568), (4, 4561784), (8, 2280892), (16, 1140446), (32, 570223), (43, 424352), (86, 212176), (89, 205024), (149, 122464), (172, 106088), (178, 102512), (298, 61232), (344, 53044), (356, 51256), (596, 30616), (688, 26522), (712, 25628), (1192, 15308), (1376, 13261), (1424, 12814), (2384, 7654), (2848, 6407), (3827, 4768)]