19409439

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^2\times {\mathrm{157}}^1$

素因数の和:232

約数の個数: 36

約数和(自身を含む): 31376904

約数和(自身を除く): 11967465

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 157, 203, 471, 609, 841, 1099, 1421, 2523, 3297, 4263, 4553, 5887, 7693, 13659, 17661, 23079, 31871, 41209, 95613, 123627, 132037, 223097, 396111, 669291, 924259, 2772777, 6469813, 19409439]

約数ペア:

[(1, 19409439), (3, 6469813), (7, 2772777), (21, 924259), (29, 669291), (49, 396111), (87, 223097), (147, 132037), (157, 123627), (203, 95613), (471, 41209), (609, 31871), (841, 23079), (1099, 17661), (1421, 13659), (2523, 7693), (3297, 5887), (4263, 4553)]