21854931

素因数分解:

$3^1\times 7^3\times {\mathrm{67}}^1\times {\mathrm{317}}^1$

素因数の和:408

約数の個数: 32

約数和(自身を含む): 34598400

約数和(自身を除く): 12743469

約数列:

[1, 3, 7, 21, 49, 67, 147, 201, 317, 343, 469, 951, 1029, 1407, 2219, 3283, 6657, 9849, 15533, 21239, 22981, 46599, 63717, 68943, 108731, 148673, 326193, 446019, 1040711, 3122133, 7284977, 21854931]

約数ペア:

[(1, 21854931), (3, 7284977), (7, 3122133), (21, 1040711), (49, 446019), (67, 326193), (147, 148673), (201, 108731), (317, 68943), (343, 63717), (469, 46599), (951, 22981), (1029, 21239), (1407, 15533), (2219, 9849), (3283, 6657)]