20030131

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:171

約数の個数: 32

約数和(自身を含む): 24634368

約数和(自身を除く): 4604237

約数列:

[1, 11, 17, 43, 47, 53, 187, 473, 517, 583, 731, 799, 901, 2021, 2279, 2491, 8041, 8789, 9911, 22231, 25069, 27401, 34357, 38743, 42347, 107113, 377927, 426173, 465817, 1178243, 1820921, 20030131]

約数ペア:

[(1, 20030131), (11, 1820921), (17, 1178243), (43, 465817), (47, 426173), (53, 377927), (187, 107113), (473, 42347), (517, 38743), (583, 34357), (731, 27401), (799, 25069), (901, 22231), (2021, 9911), (2279, 8789), (2491, 8041)]