21161344

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{5333}}^1$

素因数の和:5378

約数の個数: 32

約数和(自身を含む): 43525440

約数和(自身を除く): 22364096

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 5333, 10666, 21332, 42664, 85328, 165323, 170656, 330646, 341312, 661292, 682624, 1322584, 2645168, 5290336, 10580672, 21161344]

約数ペア:

[(1, 21161344), (2, 10580672), (4, 5290336), (8, 2645168), (16, 1322584), (31, 682624), (32, 661292), (62, 341312), (64, 330646), (124, 170656), (128, 165323), (248, 85328), (496, 42664), (992, 21332), (1984, 10666), (3968, 5333)]