20956544

素因数分解:

$2^7\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1231}}^1$

素因数の和:1271

約数の個数: 64

約数和(自身を含む): 50265600

約数和(自身を除く): 29309056

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 64, 76, 112, 128, 133, 152, 224, 266, 304, 448, 532, 608, 896, 1064, 1216, 1231, 2128, 2432, 2462, 4256, 4924, 8512, 8617, 9848, 17024, 17234, 19696, 23389, 34468, 39392, 46778, 68936, 78784, 93556, 137872, 157568, 163723, 187112, 275744, 327446, 374224, 551488, 654892, 748448, 1102976, 1309784, 1496896, 2619568, 2993792, 5239136, 10478272, 20956544]

約数ペア:

[(1, 20956544), (2, 10478272), (4, 5239136), (7, 2993792), (8, 2619568), (14, 1496896), (16, 1309784), (19, 1102976), (28, 748448), (32, 654892), (38, 551488), (56, 374224), (64, 327446), (76, 275744), (112, 187112), (128, 163723), (133, 157568), (152, 137872), (224, 93556), (266, 78784), (304, 68936), (448, 46778), (532, 39392), (608, 34468), (896, 23389), (1064, 19696), (1216, 17234), (1231, 17024), (2128, 9848), (2432, 8617), (2462, 8512), (4256, 4924)]