21428288

素因数分解:

$2^6\times 7^2\times {\mathrm{6833}}^1$

素因数の和:6859

約数の個数: 42

約数和(自身を含む): 49471326

約数和(自身を除く): 28043038

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 6833, 13666, 27332, 47831, 54664, 95662, 109328, 191324, 218656, 334817, 382648, 437312, 669634, 765296, 1339268, 1530592, 2678536, 3061184, 5357072, 10714144, 21428288]

約数ペア:

[(1, 21428288), (2, 10714144), (4, 5357072), (7, 3061184), (8, 2678536), (14, 1530592), (16, 1339268), (28, 765296), (32, 669634), (49, 437312), (56, 382648), (64, 334817), (98, 218656), (112, 191324), (196, 109328), (224, 95662), (392, 54664), (448, 47831), (784, 27332), (1568, 13666), (3136, 6833)]