18908648

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 41817600

約数和(自身を除く): 22908952

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 43, 44, 76, 86, 88, 152, 172, 209, 263, 344, 418, 473, 526, 817, 836, 946, 1052, 1634, 1672, 1892, 2104, 2893, 3268, 3784, 4997, 5786, 6536, 8987, 9994, 11309, 11572, 17974, 19988, 22618, 23144, 35948, 39976, 45236, 54967, 71896, 90472, 109934, 124399, 214871, 219868, 248798, 429742, 439736, 497596, 859484, 995192, 1718968, 2363581, 4727162, 9454324, 18908648]

約数ペア:

[(1, 18908648), (2, 9454324), (4, 4727162), (8, 2363581), (11, 1718968), (19, 995192), (22, 859484), (38, 497596), (43, 439736), (44, 429742), (76, 248798), (86, 219868), (88, 214871), (152, 124399), (172, 109934), (209, 90472), (263, 71896), (344, 54967), (418, 45236), (473, 39976), (526, 35948), (817, 23144), (836, 22618), (946, 19988), (1052, 17974), (1634, 11572), (1672, 11309), (1892, 9994), (2104, 8987), (2893, 6536), (3268, 5786), (3784, 4997)]