19873449

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 32747520

約数和(自身を除く): 12874071

約数列:

[1, 3, 9, 19, 23, 31, 57, 69, 93, 163, 171, 207, 279, 437, 489, 589, 713, 1311, 1467, 1767, 2139, 3097, 3749, 3933, 5053, 5301, 6417, 9291, 11247, 13547, 15159, 27873, 33741, 40641, 45477, 71231, 96007, 116219, 121923, 213693, 288021, 348657, 641079, 864063, 1045971, 2208161, 6624483, 19873449]

約数ペア:

[(1, 19873449), (3, 6624483), (9, 2208161), (19, 1045971), (23, 864063), (31, 641079), (57, 348657), (69, 288021), (93, 213693), (163, 121923), (171, 116219), (207, 96007), (279, 71231), (437, 45477), (489, 40641), (589, 33741), (713, 27873), (1311, 15159), (1467, 13547), (1767, 11247), (2139, 9291), (3097, 6417), (3749, 5301), (3933, 5053)]