21169217

素因数分解:

${\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1$

素因数の和:356

約数の個数: 16

約数和(自身を含む): 22822800

約数和(自身を除く): 1653583

約数列:

[1, 29, 37, 109, 181, 1073, 3161, 4033, 5249, 6697, 19729, 116957, 194213, 572141, 729973, 21169217]

約数ペア:

[(1, 21169217), (29, 729973), (37, 572141), (109, 194213), (181, 116957), (1073, 19729), (3161, 6697), (4033, 5249)]