21554398

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{5507}}^1$

素因数の和:5631

約数の個数: 16

約数和(自身を含む): 34369920

約数和(自身を除く): 12815522

約数列:

[1, 2, 19, 38, 103, 206, 1957, 3914, 5507, 11014, 104633, 209266, 567221, 1134442, 10777199, 21554398]

約数ペア:

[(1, 21554398), (2, 10777199), (19, 1134442), (38, 567221), (103, 209266), (206, 104633), (1957, 11014), (3914, 5507)]