211318985

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{509}}^1\times {\mathrm{1931}}^1$

素因数の和:2488

約数の個数: 16

約数和(自身を含む): 260124480

約数和(自身を除く): 48805495

約数列:

[1, 5, 43, 215, 509, 1931, 2545, 9655, 21887, 83033, 109435, 415165, 982879, 4914395, 42263797, 211318985]

約数ペア:

[(1, 211318985), (5, 42263797), (43, 4914395), (215, 982879), (509, 415165), (1931, 109435), (2545, 83033), (9655, 21887)]