21533856208

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79168589}}^1$

素因数の和:79168614

約数の個数: 20

約数和(自身を含む): 44176073220

約数和(自身を除く): 22642217012

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 79168589, 158337178, 316674356, 633348712, 1266697424, 1345866013, 2691732026, 5383464052, 10766928104, 21533856208]

約数ペア:

[(1, 21533856208), (2, 10766928104), (4, 5383464052), (8, 2691732026), (16, 1345866013), (17, 1266697424), (34, 633348712), (68, 316674356), (136, 158337178), (272, 79168589)]