215522221

素因数分解:

${\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1\times {\mathrm{439}}^1$

素因数の和:708

約数の個数: 16

約数和(自身を含む): 225244800

約数和(自身を除く): 9722579

約数列:

[1, 53, 59, 157, 439, 3127, 8321, 9263, 23267, 25901, 68923, 490939, 1372753, 3652919, 4066457, 215522221]

約数ペア:

[(1, 215522221), (53, 4066457), (59, 3652919), (157, 1372753), (439, 490939), (3127, 68923), (8321, 25901), (9263, 23267)]