19957923

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{919}}^1$

素因数の和:1071

約数の個数: 24

約数和(自身を含む): 30617600

約数和(自身を除く): 10659677

約数列:

[1, 3, 9, 19, 57, 127, 171, 381, 919, 1143, 2413, 2757, 7239, 8271, 17461, 21717, 52383, 116713, 157149, 350139, 1050417, 2217547, 6652641, 19957923]

約数ペア:

[(1, 19957923), (3, 6652641), (9, 2217547), (19, 1050417), (57, 350139), (127, 157149), (171, 116713), (381, 52383), (919, 21717), (1143, 17461), (2413, 8271), (2757, 7239)]