21197528

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{240881}}^1$

素因数の和:240898

約数の個数: 16

約数和(自身を含む): 43358760

約数和(自身を除く): 22161232

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 240881, 481762, 963524, 1927048, 2649691, 5299382, 10598764, 21197528]

約数ペア:

[(1, 21197528), (2, 10598764), (4, 5299382), (8, 2649691), (11, 1927048), (22, 963524), (44, 481762), (88, 240881)]