21622004

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1373}}^1$

素因数の和:1535

約数の個数: 24

約数和(自身を含む): 39395328

約数和(自身を除く): 17773324

約数列:

[1, 2, 4, 31, 62, 124, 127, 254, 508, 1373, 2746, 3937, 5492, 7874, 15748, 42563, 85126, 170252, 174371, 348742, 697484, 5405501, 10811002, 21622004]

約数ペア:

[(1, 21622004), (2, 10811002), (4, 5405501), (31, 697484), (62, 348742), (124, 174371), (127, 170252), (254, 85126), (508, 42563), (1373, 15748), (2746, 7874), (3937, 5492)]