21748678

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{91381}}^1$

素因数の和:91407

約数の個数: 16

約数和(自身を含む): 39477024

約数和(自身を除く): 17728346

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 91381, 182762, 639667, 1279334, 1553477, 3106954, 10874339, 21748678]

約数ペア:

[(1, 21748678), (2, 10874339), (7, 3106954), (14, 1553477), (17, 1279334), (34, 639667), (119, 182762), (238, 91381)]