20400361

素因数分解:

${\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:280

約数の個数: 16

約数和(自身を含む): 21697984

約数和(自身を除く): 1297623

約数列:

[1, 43, 67, 73, 97, 2881, 3139, 4171, 4891, 6499, 7081, 210313, 279457, 304483, 474427, 20400361]

約数ペア:

[(1, 20400361), (43, 474427), (67, 304483), (73, 279457), (97, 210313), (2881, 7081), (3139, 6499), (4171, 4891)]