21217128

素因数分解:

$2^3\times 3^1\times {\mathrm{127}}^1\times {\mathrm{6961}}^1$

素因数の和:7097

約数の個数: 32

約数和(自身を含む): 53468160

約数和(自身を除く): 32251032

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 127, 254, 381, 508, 762, 1016, 1524, 3048, 6961, 13922, 20883, 27844, 41766, 55688, 83532, 167064, 884047, 1768094, 2652141, 3536188, 5304282, 7072376, 10608564, 21217128]

約数ペア:

[(1, 21217128), (2, 10608564), (3, 7072376), (4, 5304282), (6, 3536188), (8, 2652141), (12, 1768094), (24, 884047), (127, 167064), (254, 83532), (381, 55688), (508, 41766), (762, 27844), (1016, 20883), (1524, 13922), (3048, 6961)]