21405546

素因数分解:

$2^1\times 3^4\times {\mathrm{229}}^1\times {\mathrm{577}}^1$

素因数の和:820

約数の個数: 40

約数和(自身を含む): 48257220

約数和(自身を除く): 26851674

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 229, 458, 577, 687, 1154, 1374, 1731, 2061, 3462, 4122, 5193, 6183, 10386, 12366, 15579, 18549, 31158, 37098, 46737, 93474, 132133, 264266, 396399, 792798, 1189197, 2378394, 3567591, 7135182, 10702773, 21405546]

約数ペア:

[(1, 21405546), (2, 10702773), (3, 7135182), (6, 3567591), (9, 2378394), (18, 1189197), (27, 792798), (54, 396399), (81, 264266), (162, 132133), (229, 93474), (458, 46737), (577, 37098), (687, 31158), (1154, 18549), (1374, 15579), (1731, 12366), (2061, 10386), (3462, 6183), (4122, 5193)]