18601456

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1423}}^1$

素因数の和:1493

約数の個数: 40

約数和(自身を含む): 38846720

約数和(自身を除く): 20245264

約数列:

[1, 2, 4, 8, 16, 19, 38, 43, 76, 86, 152, 172, 304, 344, 688, 817, 1423, 1634, 2846, 3268, 5692, 6536, 11384, 13072, 22768, 27037, 54074, 61189, 108148, 122378, 216296, 244756, 432592, 489512, 979024, 1162591, 2325182, 4650364, 9300728, 18601456]

約数ペア:

[(1, 18601456), (2, 9300728), (4, 4650364), (8, 2325182), (16, 1162591), (19, 979024), (38, 489512), (43, 432592), (76, 244756), (86, 216296), (152, 122378), (172, 108148), (304, 61189), (344, 54074), (688, 27037), (817, 22768), (1423, 13072), (1634, 11384), (2846, 6536), (3268, 5692)]