20955423

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{563}}^1\times {\mathrm{653}}^1$

素因数の和:1238

約数の個数: 16

約数和(自身を含む): 29508480

約数和(自身を除く): 8553057

約数列:

[1, 3, 19, 57, 563, 653, 1689, 1959, 10697, 12407, 32091, 37221, 367639, 1102917, 6985141, 20955423]

約数ペア:

[(1, 20955423), (3, 6985141), (19, 1102917), (57, 367639), (563, 37221), (653, 32091), (1689, 12407), (1959, 10697)]