20695808

素因数分解:

$2^8\times 7^1\times {\mathrm{11549}}^1$

素因数の和:11572

約数の個数: 36

約数和(自身を含む): 47216400

約数和(自身を除く): 26520592

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 896, 1792, 11549, 23098, 46196, 80843, 92392, 161686, 184784, 323372, 369568, 646744, 739136, 1293488, 1478272, 2586976, 2956544, 5173952, 10347904, 20695808]

約数ペア:

[(1, 20695808), (2, 10347904), (4, 5173952), (7, 2956544), (8, 2586976), (14, 1478272), (16, 1293488), (28, 739136), (32, 646744), (56, 369568), (64, 323372), (112, 184784), (128, 161686), (224, 92392), (256, 80843), (448, 46196), (896, 23098), (1792, 11549)]