21087730945

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{883}}^1\times {\mathrm{67273}}^1$

素因数の和:68232

約数の個数: 16

約数和(自身を含む): 25691133312

約数和(自身を除く): 4603402367

約数列:

[1, 5, 71, 355, 883, 4415, 62693, 67273, 313465, 336365, 4776383, 23881915, 59402059, 297010295, 4217546189, 21087730945]

約数ペア:

[(1, 21087730945), (5, 4217546189), (71, 297010295), (355, 59402059), (883, 23881915), (4415, 4776383), (62693, 336365), (67273, 313465)]