16811223

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{263}}^1$

素因数の和:439

約数の個数: 32

約数和(自身を含む): 26611200

約数和(自身を除く): 9799977

約数列:

[1, 3, 11, 13, 33, 39, 143, 149, 263, 429, 447, 789, 1639, 1937, 2893, 3419, 4917, 5811, 8679, 10257, 21307, 37609, 39187, 63921, 112827, 117561, 431057, 509431, 1293171, 1528293, 5603741, 16811223]

約数ペア:

[(1, 16811223), (3, 5603741), (11, 1528293), (13, 1293171), (33, 509431), (39, 431057), (143, 117561), (149, 112827), (263, 63921), (429, 39187), (447, 37609), (789, 21307), (1639, 10257), (1937, 8679), (2893, 5811), (3419, 4917)]