21842905

素因数分解:

$5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{4133}}^1$

素因数の和:4296

約数の個数: 16

約数和(自身を含む): 30161664

約数和(自身を除く): 8318759

約数列:

[1, 5, 7, 35, 151, 755, 1057, 4133, 5285, 20665, 28931, 144655, 624083, 3120415, 4368581, 21842905]

約数ペア:

[(1, 21842905), (5, 4368581), (7, 3120415), (35, 624083), (151, 144655), (755, 28931), (1057, 20665), (4133, 5285)]