21094384

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{599}}^1$

素因数の和:709

約数の個数: 40

約数和(自身を含む): 42854400

約数和(自身を除く): 21760016

約数列:

[1, 2, 4, 8, 16, 31, 62, 71, 124, 142, 248, 284, 496, 568, 599, 1136, 1198, 2201, 2396, 4402, 4792, 8804, 9584, 17608, 18569, 35216, 37138, 42529, 74276, 85058, 148552, 170116, 297104, 340232, 680464, 1318399, 2636798, 5273596, 10547192, 21094384]

約数ペア:

[(1, 21094384), (2, 10547192), (4, 5273596), (8, 2636798), (16, 1318399), (31, 680464), (62, 340232), (71, 297104), (124, 170116), (142, 148552), (248, 85058), (284, 74276), (496, 42529), (568, 37138), (599, 35216), (1136, 18569), (1198, 17608), (2201, 9584), (2396, 8804), (4402, 4792)]