21986999955

素因数分解:

$3^2\times 5^1\times {\mathrm{1997}}^1\times {\mathrm{244667}}^1$

素因数の和:246675

約数の個数: 24

約数和(自身を含む): 38130039792

約数和(自身を除く): 16143039837

約数列:

[1, 3, 5, 9, 15, 45, 1997, 5991, 9985, 17973, 29955, 89865, 244667, 734001, 1223335, 2202003, 3670005, 11010015, 488599999, 1465799997, 2442999995, 4397399991, 7328999985, 21986999955]

約数ペア:

[(1, 21986999955), (3, 7328999985), (5, 4397399991), (9, 2442999995), (15, 1465799997), (45, 488599999), (1997, 11010015), (5991, 3670005), (9985, 2202003), (17973, 1223335), (29955, 734001), (89865, 244667)]