21197704

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{240883}}^1$

素因数の和:240900

約数の個数: 16

約数和(自身を含む): 43359120

約数和(自身を除く): 22161416

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 240883, 481766, 963532, 1927064, 2649713, 5299426, 10598852, 21197704]

約数ペア:

[(1, 21197704), (2, 10598852), (4, 5299426), (8, 2649713), (11, 1927064), (22, 963532), (44, 481766), (88, 240883)]