21138408

素因数分解:

$2^3\times 3^4\times {\mathrm{32621}}^1$

素因数の和:32639

約数の個数: 40

約数和(自身を含む): 59208930

約数和(自身を除く): 38070522

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 32621, 65242, 97863, 130484, 195726, 260968, 293589, 391452, 587178, 782904, 880767, 1174356, 1761534, 2348712, 2642301, 3523068, 5284602, 7046136, 10569204, 21138408]

約数ペア:

[(1, 21138408), (2, 10569204), (3, 7046136), (4, 5284602), (6, 3523068), (8, 2642301), (9, 2348712), (12, 1761534), (18, 1174356), (24, 880767), (27, 782904), (36, 587178), (54, 391452), (72, 293589), (81, 260968), (108, 195726), (162, 130484), (216, 97863), (324, 65242), (648, 32621)]