19844559

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2647}}^1$

素因数の和:2684

約数の個数: 36

約数和(自身を含む): 35319024

約数和(自身を除く): 15474465

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 357, 441, 833, 1071, 2499, 2647, 7497, 7941, 18529, 23823, 44999, 55587, 129703, 134997, 166761, 314993, 389109, 404991, 944979, 1167327, 2204951, 2834937, 6614853, 19844559]

約数ペア:

[(1, 19844559), (3, 6614853), (7, 2834937), (9, 2204951), (17, 1167327), (21, 944979), (49, 404991), (51, 389109), (63, 314993), (119, 166761), (147, 134997), (153, 129703), (357, 55587), (441, 44999), (833, 23823), (1071, 18529), (2499, 7941), (2647, 7497)]