18251264

素因数分解:

$2^9\times {\mathrm{43}}^1\times {\mathrm{829}}^1$

素因数の和:890

約数の個数: 40

約数和(自身を含む): 37359960

約数和(自身を除く): 19108696

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 256, 344, 512, 688, 829, 1376, 1658, 2752, 3316, 5504, 6632, 11008, 13264, 22016, 26528, 35647, 53056, 71294, 106112, 142588, 212224, 285176, 424448, 570352, 1140704, 2281408, 4562816, 9125632, 18251264]

約数ペア:

[(1, 18251264), (2, 9125632), (4, 4562816), (8, 2281408), (16, 1140704), (32, 570352), (43, 424448), (64, 285176), (86, 212224), (128, 142588), (172, 106112), (256, 71294), (344, 53056), (512, 35647), (688, 26528), (829, 22016), (1376, 13264), (1658, 11008), (2752, 6632), (3316, 5504)]