20981675

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5869}}^1$

素因数の和:5903

約数の個数: 24

約数和(自身を含む): 30570960

約数和(自身を除く): 9589285

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 275, 325, 715, 3575, 5869, 29345, 64559, 76297, 146725, 322795, 381485, 839267, 1613975, 1907425, 4196335, 20981675]

約数ペア:

[(1, 20981675), (5, 4196335), (11, 1907425), (13, 1613975), (25, 839267), (55, 381485), (65, 322795), (143, 146725), (275, 76297), (325, 64559), (715, 29345), (3575, 5869)]