19810656

素因数分解:

$2^5\times 3^4\times {\mathrm{7643}}^1$

素因数の和:7665

約数の個数: 60

約数和(自身を含む): 58270212

約数和(自身を除く): 38459556

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 81, 96, 108, 144, 162, 216, 288, 324, 432, 648, 864, 1296, 2592, 7643, 15286, 22929, 30572, 45858, 61144, 68787, 91716, 122288, 137574, 183432, 206361, 244576, 275148, 366864, 412722, 550296, 619083, 733728, 825444, 1100592, 1238166, 1650888, 2201184, 2476332, 3301776, 4952664, 6603552, 9905328, 19810656]

約数ペア:

[(1, 19810656), (2, 9905328), (3, 6603552), (4, 4952664), (6, 3301776), (8, 2476332), (9, 2201184), (12, 1650888), (16, 1238166), (18, 1100592), (24, 825444), (27, 733728), (32, 619083), (36, 550296), (48, 412722), (54, 366864), (72, 275148), (81, 244576), (96, 206361), (108, 183432), (144, 137574), (162, 122288), (216, 91716), (288, 68787), (324, 61144), (432, 45858), (648, 30572), (864, 22929), (1296, 15286), (2592, 7643)]