21681616

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{123191}}^1$

素因数の和:123210

約数の個数: 20

約数和(自身を含む): 45827424

約数和(自身を除く): 24145808

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 123191, 246382, 492764, 985528, 1355101, 1971056, 2710202, 5420404, 10840808, 21681616]

約数ペア:

[(1, 21681616), (2, 10840808), (4, 5420404), (8, 2710202), (11, 1971056), (16, 1355101), (22, 985528), (44, 492764), (88, 246382), (176, 123191)]