21040978

素因数分解:

$2^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{6563}}^1$

素因数の和:6801

約数の個数: 16

約数和(自身を含む): 36233280

約数和(自身を除く): 15192302

約数列:

[1, 2, 7, 14, 229, 458, 1603, 3206, 6563, 13126, 45941, 91882, 1502927, 3005854, 10520489, 21040978]

約数ペア:

[(1, 21040978), (2, 10520489), (7, 3005854), (14, 1502927), (229, 91882), (458, 45941), (1603, 13126), (3206, 6563)]