16561311

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:575

約数の個数: 32

約数和(自身を含む): 25536000

約数和(自身を除く): 8974689

約数列:

[1, 3, 13, 23, 37, 39, 69, 111, 299, 481, 499, 851, 897, 1443, 1497, 2553, 6487, 11063, 11477, 18463, 19461, 33189, 34431, 55389, 149201, 240019, 424649, 447603, 720057, 1273947, 5520437, 16561311]

約数ペア:

[(1, 16561311), (3, 5520437), (13, 1273947), (23, 720057), (37, 447603), (39, 424649), (69, 240019), (111, 149201), (299, 55389), (481, 34431), (499, 33189), (851, 19461), (897, 18463), (1443, 11477), (1497, 11063), (2553, 6487)]