21085902

素因数分解:

$2^1\times 3^2\times {\mathrm{947}}^1\times {\mathrm{1237}}^1$

素因数の和:2192

約数の個数: 24

約数和(自身を含む): 45771336

約数和(自身を除く): 24685434

約数列:

[1, 2, 3, 6, 9, 18, 947, 1237, 1894, 2474, 2841, 3711, 5682, 7422, 8523, 11133, 17046, 22266, 1171439, 2342878, 3514317, 7028634, 10542951, 21085902]

約数ペア:

[(1, 21085902), (2, 10542951), (3, 7028634), (6, 3514317), (9, 2342878), (18, 1171439), (947, 22266), (1237, 17046), (1894, 11133), (2474, 8523), (2841, 7422), (3711, 5682)]