18503416

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 37719000

約数和(自身を除く): 19215584

約数列:

[1, 2, 4, 8, 19, 38, 43, 76, 86, 149, 152, 172, 298, 344, 361, 596, 722, 817, 1192, 1444, 1634, 2831, 2888, 3268, 5662, 6407, 6536, 11324, 12814, 15523, 22648, 25628, 31046, 51256, 53789, 62092, 107578, 121733, 124184, 215156, 243466, 430312, 486932, 973864, 2312927, 4625854, 9251708, 18503416]

約数ペア:

[(1, 18503416), (2, 9251708), (4, 4625854), (8, 2312927), (19, 973864), (38, 486932), (43, 430312), (76, 243466), (86, 215156), (149, 124184), (152, 121733), (172, 107578), (298, 62092), (344, 53789), (361, 51256), (596, 31046), (722, 25628), (817, 22648), (1192, 15523), (1444, 12814), (1634, 11324), (2831, 6536), (2888, 6407), (3268, 5662)]