19965932

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 43819776

約数和(自身を除く): 23853844

約数列:

[1, 2, 4, 7, 14, 23, 28, 43, 46, 49, 86, 92, 98, 103, 161, 172, 196, 206, 301, 322, 412, 602, 644, 721, 989, 1127, 1204, 1442, 1978, 2107, 2254, 2369, 2884, 3956, 4214, 4429, 4508, 4738, 5047, 6923, 8428, 8858, 9476, 10094, 13846, 16583, 17716, 20188, 27692, 31003, 33166, 48461, 62006, 66332, 96922, 101867, 116081, 124012, 193844, 203734, 217021, 232162, 407468, 434042, 464324, 713069, 868084, 1426138, 2852276, 4991483, 9982966, 19965932]

約数ペア:

[(1, 19965932), (2, 9982966), (4, 4991483), (7, 2852276), (14, 1426138), (23, 868084), (28, 713069), (43, 464324), (46, 434042), (49, 407468), (86, 232162), (92, 217021), (98, 203734), (103, 193844), (161, 124012), (172, 116081), (196, 101867), (206, 96922), (301, 66332), (322, 62006), (412, 48461), (602, 33166), (644, 31003), (721, 27692), (989, 20188), (1127, 17716), (1204, 16583), (1442, 13846), (1978, 10094), (2107, 9476), (2254, 8858), (2369, 8428), (2884, 6923), (3956, 5047), (4214, 4738), (4429, 4508)]