19882049

素因数分解:

${\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{509}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 22472640

約数和(自身を除く): 2590591

約数列:

[1, 11, 53, 67, 509, 583, 737, 3551, 5599, 26977, 34103, 39061, 296747, 375133, 1807459, 19882049]

約数ペア:

[(1, 19882049), (11, 1807459), (53, 375133), (67, 296747), (509, 39061), (583, 34103), (737, 26977), (3551, 5599)]