19752733

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2819}}^1$

素因数の和:2857

約数の個数: 24

約数和(自身を含む): 27004320

約数和(自身を除く): 7251587

約数列:

[1, 7, 11, 13, 49, 77, 91, 143, 539, 637, 1001, 2819, 7007, 19733, 31009, 36647, 138131, 217063, 256529, 403117, 1519441, 1795703, 2821819, 19752733]

約数ペア:

[(1, 19752733), (7, 2821819), (11, 1795703), (13, 1519441), (49, 403117), (77, 256529), (91, 217063), (143, 138131), (539, 36647), (637, 31009), (1001, 19733), (2819, 7007)]