21604198

素因数分解:

$2^1\times 7^4\times {\mathrm{11}}^1\times {\mathrm{409}}^1$

素因数の和:450

約数の個数: 40

約数和(自身を含む): 41342760

約数和(自身を除く): 19738562

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 343, 409, 539, 686, 818, 1078, 2401, 2863, 3773, 4499, 4802, 5726, 7546, 8998, 20041, 26411, 31493, 40082, 52822, 62986, 140287, 220451, 280574, 440902, 982009, 1543157, 1964018, 3086314, 10802099, 21604198]

約数ペア:

[(1, 21604198), (2, 10802099), (7, 3086314), (11, 1964018), (14, 1543157), (22, 982009), (49, 440902), (77, 280574), (98, 220451), (154, 140287), (343, 62986), (409, 52822), (539, 40082), (686, 31493), (818, 26411), (1078, 20041), (2401, 8998), (2863, 7546), (3773, 5726), (4499, 4802)]